baber/WOPTO huggingface dataset:
Patent GB-804921-A (GB)
Title: Method for the electrolytic production of chlorine and an aqueous solution of lithium hydroxide
IPC: C25B1/36
Filed: 1955-12-02
Abstract: <PICT:0804921/III/1> <PICT:0804921/III/2> An aqueous solution of lithium chloride containing as impurities another alkali metal chloride and/or an alkaline earth metal chloride is electrolysed in a mercury cell to produce chlorine and lithium amalgam and the amalgam is then decomposed by contacting it with water in two or more stages to form an aqueous solution of lithium hydroxide.  Preferably 50 to 90 per cent by weight of the amalgam is decomposed in the first stage.  Typically the cell brine effluent from the pipe 2 at about 70 DEG  C. is acidified with dilute hydrochloric acid and while maintained at this temperature is dechlorinated by aeration.  The chlorine-free brine is then brought to pH 8 to 9 with aqueous lithium hydroxide and is then fed to a saturator where solid lithium chloride is added, the resulting solution passing to a settling tank having a partition which extends above the surface but not to the tank bottom, so that, on the addition of lithium carbonate, ferric hydroxide floc is retained by the partition and calcium and magnesium carbonates are deposited while allowing passage of the treated brine which on passage through sand filters is adjusted to pH 3 and then returned to the cell at 34.  The cell which is provided with levelling screws 53 has transparent plastic walls, a steel bottom 26 to which cathode connection is made, and a rubber-lined steel cover 30 having a chlorine vent 35, the chlorine being neutralized with caustic, while the graphite anode 27 is carried by two vertically adjustable posts 28.  Depending walls 26a and 26b form with the mercury amalgam seals for the brine.  After washing with water which flows across the compartment 32, the amalgam is fed to the two decomposers 36 which contain decomposer grids 38 consisting of graphite rods 39 mounted between steel plates 40 and into which water is fed at 42, 44 so as to cover the grids, the amalgam being kept out of contact with the grids.  A partition 41 dipping into the amalgam keeps the two decomposer compartments separate, the lithium hydroxide extracted at 43 being clear and of high purity while that extracted at 45 from the second decomposer is clouded with suspended magnesium and calcium hydroxides and contains larger amounts of potassium and sodium hydroxides.  To ensure almost complete decomposition of the amalgam an electric heater is secured to the bottom of the second decomposer to maintain a suitable temperature, typically between 45 DEG  and 70 DEG  C.  The decomposed amalgam containing up to 0.0018 per cent by weight lithium is flushed with water flowing in opposition in chamber 48 and is then pumped at 47 back to the cell.
Patent GB-1465500-A (GB)
Title: Apparatus for and a method of inserting pins in holes in a pattern drum for a circular knitting machine
IPC: D04B37/04
Filed: 1974-08-06
Abstract: 1465500 Automatic control NUOVA SAN GIORGIO Spa 6 Aug 1974 [9 Aug 1973] 34672/74 Heading G3N [Also in Division D1] Pin-inserting apparatus for pattern drums of knitting machines comprises a rotatable spindle 18 for mounting a pattern drum 19 horizontally a carriage 32 movable longitudinally of the drum and a pin insertion device on the carriage comprising a pusher member 46, 48, 50 reciprocable under spring 51 force and the action of a cam 53 and lever 52, pin supply means 41-45 for delivering a pin into the path of the pusher member and means such as a lever 58 for preventing the pusher member from inserting a pin into a particular hole in the drum the lever 58 being controlled, e.g. electromagnetically, by signals from an electronic pattern reading device. The spindle is rotated by a motor through a Geneva wheel, worm screw 26 and worm wheel 25. The carriage is driven by a second motor through a further Geneva wheel and a worm screw 34 engaging a nut on the carriage. The cam 53 is rotated by the second motor. Limit switches as 75 stop the respective motors on completion of a row on the drum 19 and on rotation to the next row, and the stepping of carriage 32 is controlled by signals from the pattern reading device. A sensor 73 stops the apparatus if a pin is jammed or missing. The pin supply means comprises a centrifugal trough 41 and gravity feed 45. The spindle 18 is pivotable about the axis of worm screw 26 to an upright position to facilitate application and removal of the pattern drum. A rod 66 controlled by a cam 69 and spring 70 ensures that the rows of holes in the drum are correctly aligned with the pin insertion device.
Patent GB-1175790-A (GB)
Title: Improvements in and relating to Vacuum Furnaces for the Investigation of Samples
IPC: F27B17/02
Filed: 1968-07-22
Abstract: 1,175,790. Vacuum furnaces. BALZERS PATENT-UND BETEILIGUNGS A.G. 22 July, 1968 [24 July, 1967], No. 34842/68. Heading H5H. In a vacuum furnace for the investigation of samples wherein a sample container 5 of carbon or graphite is clamped between current supply electrodes 1, 2 for heating by direct passage of current therethrough, a metallic insert 3 closely surrounds the container and acts as a heat sink in the pause between the heating of the next sample. Evacuation takes place through a duct 15 in electrode 2 by means of a vacuum pump 16. Annular seals 17, 18 are provided for the electrodes 2, 1 which are constructed as pistons slidable in the cylindrical furnace casing 6. The electrodes are cooled via supply and discharge pipes 7-10. During evacuation the pressure required for pressing the electrodes against the container 5 is provided by the external atmospheric pressure . reduced, if necessary, by compression springs 19 with adjustable abutments 20 between the electrodes. Gases given off by the sample diffuse through the wall of container 5 or vent openings are provided. Insert 3 fills the space around the container 5 apart from the evacuation duct 15 and any electrical isolation (not shown).
Patent GB-1514551-A (GB)
Title: Printing plates
IPC: B41N1/08
Filed: 1975-08-22
Abstract: 1514551 Printing plate precursors AMERICAN HOECHST CORP 22 Aug 1975 [26 Aug 1974] 34926/75 Heading G2C A steel plate is coated with aluminium, zinc or an alloy comprising aluminium and zinc, the coating is treated with a polyvinyl phosphonic acid and then covered with a light-sensitive layer containing a negative working diazo compound e.g. a diazonium salt. The steel is preferably mild steel and the alloy composition, by weight, is 25 to 70% aluminium and 75 to 30% zinc. A small amount (0.5 to 3%) of silicon may also be present. The surface of the coating is roughened prior to applying the light-sensitive layer. The coated steel plate is resistant to corrosion.
Patent GB-1172611-A (GB)
Title: Method and apparatus for collecting loose materials in a vehicular collector.
IPC: E01H1/08
Filed: 1967-07-28
Abstract: 1,172,611. Pneumatic refuse collectors. MYERS-SHERMAN CO. 28 July, 1967 [10 Aug., 1966], No. 34928/67. Heading E1G [Also in Division F1] A vehicle for collecting refuse or other loose solid and/or liquid material comprises a suction nozzle 48, a tippable collecting box 18 exhausted by a compressor 36, and a cyclone separator 80; Fig. 2, which may be by-passed when required but which normally cleans the air leaving the box 18. The suction hose 46 is adjustably carried on a boom 54, has a water drain 52, and is coupled to an off-centre inlet in the upper front wall 20 of the box 18. The compressor 36 is driven by an engine 40, has a discharge duct 38, and is coupled to a central outlet 66 in the wall 20. The air flow is such that the bulb of entrained material is deposited in a heap 148 against the rear door 30. whereafter the air returns to the front wall, rises into a trough-shaped space behind an inclined-plate baffle 68, and thence is ducted through the separator 80 to the box outlet 66. The separator may be by-passed (e.g. when picking up liquids) by operating an external handle 132 to open a plate 144 in a by-pass duct 106 directly interconnecting the outlet 66 and the trough-shaped space. In the separator 80, air enters tangentially, is accelerated in a curved path and emerges axially at its upper end. Dust, &c is thus extracted centrifugally and falls to a receptacle 88 for removal through an external door. The box 18 also includes a liquid-receiving filter box 441 having a closable drain 146.
Patent GB-304184-A (GB)
Title: Improvements in and relating to apparatus for sorting, or grading, according to weight, eggs or other articles capable of rolling
IPC: B07C5/22
Filed: 1928-11-27
Abstract: 304,184. McEllin, T. J. Jan. 16, 1928, [Convention date]. Drawings to Specification. Packeting eggs, fruit, and the like in cases.- The Specification as open to inspection under Sect. 91 (3) (a) comprises also the devices for packeting eggs and the like, described and claimed in Specification 325,778. This subject-matter does not appear in the Specification as accepted.
Patent GB-358344-A (GB)
Title: Improvements in or relating to directional aerial systems
IPC: H01Q21/06
Filed: 1930-11-20
Abstract: 358,344. Aerials. MARCONI'S WIRELESS TELEGRAPH CO., Ltd., Marconi House, Strand, London.-(Assignees of Marino, A., 6, Viale Mazzini, Rome.) Nov. 20, 1930, No. 34995. Convention date, Nov. 26, 1929. [Class 40 (v).] Relates to short-wave aerials of the type in which a series of vertical or horizontal radiators A1, B1 and A2, B2 and C1, Dl and C2, D2, Fig. 2, are energized in phase and interconnected by cross-members A2, D1 and B1, C2 having no effective radiation. According to the invention the non-radiating crossmembers are conductively joined together at the mid-points O1<SP>1>, O1<SP>11>. Instead of the radiators being energized from the lower end, the feed-wires L may be arranged centrally, as shown in Fig. 5, and the radiators may be arranged horizontally instead of vertically. A similar non-energized system may be used as a reflector. The distance between successive radiators may be increased from 0À5 to 0À72 of the wavelength as shown in Fig. 7, giving a favourable current distribution with only two nodes at B4, A1 and D4, C1 respectively. The spacing of the non-radiating cross-members may be triangular or rectangular in plan. For omnidirectional transmission, as for broadcasting, the prismatic arrangement shown in Fig. 9 may be adopted.
Patent GB-886890-A (GB)
Title: Binary and ternary copolymers and a process for the making thereof
IPC: C08F212/08
Filed: 1960-10-13
Abstract: Copolymers of styrene and dimethyl citraconate or dimethyl mesaconate, optionally together with acrylonitrile, may be prepared by heating a mixture of the monomer at 50 to 150 DEG  C. in the presence of a catalyst comprising a free-radical-forming compound for times ranging from 24 hours to several days. Preferred copolymers contain 30 to 90 parts of styrene and 70-10 parts of the diesters, and optionally up to 30% (by weight of the monomers) of acrylontirile.  The catalyst may be an oganic peroxide or hydroperoxide, e.g. benzoyl or lauryl peroxide.  The copolymers may be injection moulded and extruded.
Patent GB-813356-A (GB)
Title: Improvements in electric oven temperature regulators
IPC: H05B1/02
Filed: 1956-11-19
Abstract: 813,356. Switching systems for heating resistors; automatic temperature-control systems. ELCALOR AKTIENGESELSCHAFT FABRIK FUR ELECTROTHERMISCHE APPARATE. Nov. 19, 1956 [Nov. 18, 1955], No. 35227/56. Class 38 (4). In a circuit for regulating the temperature of an oven, an auxiliary switch or switches are mechanically coupled to the operating member of a thermostatic switch, so that at certain temperature settings, additional heating elements are switched on or off. In the Figure, heating resistors 1, 2 are positioned in the upper and lower part of the oven, respectively, and are controlled by contacts 3, 4, contact 3 being moved by temperature-sensitive element 9 and contact 4 by knob 5, which is provided with a temperature scale 6. Auxiliary switch 11 con-  nected in series with resistor 1 is closed when the knob 5 is set for operation above a certain temperature-say 140‹ C. Resistor 2 may be controlled by a further switch 14 which is operated at certain positions of knob 5.
Patent GB-1123195-A (GB)
Title: Apparatus for operating a motor vehicle whilst stationary
IPC: G01L5/13
Filed: 1965-08-18
Abstract: 1,123,195. Vehicle wheel support. R.A.P. ROLLEN AUTOMOBIL PATENT ANSTALT. 18 Aug., 1965 [25 Aug., 1964; 28 Jan., 1965], No. 35334/65. Headings B7H and B7J. A support for a motor vehicle wheel to enable it to be driven comprises a frame 5, a ramp 6, a pair of rollers 3, 4 for supporting the vehicle wheel and which are adjustable with respect to one another in a horizontal plane, and a guide roller 14. Two such devices may be mounted on a pair of telescopic rods for lateral adjustment to suit vehicles of different track widths. The rollers may be fluted and may have a roughened surface and may be adjustably mounted for angular adjustment of the axes. Alternatively, the axes of the rollers may be inclined for automatic centring of the vehicle wheels. The apparatus may be used for testing or inspecting a vehicle or for training drivers.
Patent GB-955269-A (GB)
Title: Improvements in or relating to electric isolating switches with cartridge fuses
IPC: H01H85/22
Filed: 1960-10-14
Abstract: 955,269. Switches held set and freed mechanically. LA TELEMECANIQUE ELECTRIQUE. Oct. 14, 1960 [Oct. 15, 1959; Sept. 1, 1960], No. 35371/60. Heading H2B. A fused isolating switch comprises an insulating base 2 carrying terminals 5, 6, provided with contact clips 7 urged inwardly by springs 8, the end walls 11 of the base 2 having grooves 1 1a to receive the ribs 17 of a vertically - movable insulating part 3 whose grooves 16 co-operate with partitions 12. The part 3 has cavities 13 carrying cartridge fuses 20 whose conducting ends 20b are partially enclosed by projections 18, 19 movable freely between the clips 7, end walls 14 supporting the fuses 20 when the isolator panel 1 is mounted vertically. The part 3 is moved by a lever 21 pivoted on one wall 11 and attached to a rod 23 passing through arcuate holes 24 in the walls 11 and through elongated apertures 25 in the part 3, and being pivoted on the other wall 11, Fig. 5. The isolator is maintained closed and open by the friction of the rod 23 in the holes 24, 25, and the pressure of clips 7 on the members 20b assists the rod action in the closed position and assists the manual opening movement of the lever 21 as the members 7, 20b separate, this opening movement also being assisted by a spring 28 compressed during closure. The part 3 carries an arm 30 engageable with the pushbutton 31 of a micro-switch 32 controlling the operation of a main switch in series with the isolator, the relative position of members 30, 31 being adjusted so that opening of the main switch occurs before the isolator opens. In a modification, Figs. 6 and 10, the cartridges 50 have knife blades 51 co-operating with spring- urged jaws 35 and are carried by separate insulating blocks 39 movable simultaneously in grooves in walls 11 and partitions 40 by the rod 23 which is secured to a lever 21, is pivoted at 42 and passes through apertures 24, 25 in members 11, 40, 39. Each block 39 carries metal walls 45 having slots 52a for the insertion of the knives 51 into windows 52b where they are held by a spring 54, grooves 48 in the block increasing the leakage path between the walls 45. The bottom 31 of the micro-switch 32 is actuated as before by an arm 43. Specification 491,650 is referred to.
Patent GB-467826-A (GB)
Title: Improvements in or relating to vehicle brakes
IPC: F16D51/50
Filed: 1935-12-23
Abstract: 467,826. Internal shoe brakes. BENDIX, Ltd., and IRVING, J. S. Dec. 23. 1935, No. 35515. [Class 103 (i)] A centralizing device for an internal-shoe brake in which one shoe applies another comprises a spring n anchored on the back plate having two opposed limbs q urged toward each other against a limiting stop t and lying on opposite sides of a collar l carried by a sleeve d connecting the shoes a, b or by one of the shoes. The spring n is U-shaped and held by lugs s, u on a bracket r adjustably bolted to the brake back plate. The sleeve d is internally screwed and forms part of the adjusting-mechanism between the shoes and is turned for adjustment by a crown wheel j. Specification 354,038 is referred to.
Patent GB-522369-A (GB)
Title: Improvements in liquid-break electric circuit breakers
IPC: H01H33/75
Filed: 1938-12-06
Abstract: 522,369. Liquid break switches. BRITISH THOMSON - HOUSTON CO., Ltd., and TRENCHAM, H. Dec. 6, 1938, No. 35584. [Class 38 (v)] A two-breaks-perp h a s e, liquid - immersed switch has a baffle-plate provided in the neighbourhood of one break in each phase so as to produce asymmetry of liquid - flow in the vicinity of the breaks during arcing conditions. The baffle plate may extend in the direction of contact-separation or, as shown, transversely thereto. The plates of all the phases .may be attached either, as shown at 8, to the lead-in conductor adjacent the fixed contact 3 or as shown at 9, to the tank wall, but preferably, in the former case, in order to balance the mechanical forces within the tank, the baffle of the middle phase is placed adjacent the contact 4 of that phase, Fig. 3 (not shown). Specification 371,340 is referred to.
Patent GB-471026-A (GB)
Title: Improved artificial skins for sausages
IPC: A22C13/00
Filed: 1936-04-08
Abstract: Artificial sausage skins are prepared by immersing a cylindrical mould in a solution of polyvinyl acetal, rotating the mould to reduce the film to substantially uniform thickness, solidifying, treating with water, stretching and drying in a stretched condition.  Opaque skins are prepared by drying in a moist atmosphere whereas clear skins are prepared when the solvent for the acetal does not promote condensation of water because of its high boiling point.  The Specification as open to inspection under Sect. 91 refers in general to the manufacture of sausage skins from a polyvinyl acetal.  This subject-matter does not appear in the Specification as accepted.
Patent GB-811398-A (GB)
Title: Improvements relating to hypodermic syringes
Inventor: EVERETT SAMUEL JAMES
IPC: A61J1/06
Filed: 1956-11-21
Abstract: 811,398. Moulding plugs. EVERETT & CO. Ltd., S. & R. J. Nov. 12, 1957 [Nov. 21, 1956 ; Feb. 26, 1957], Nos. 35630/56 and 6454/57. Class 87(2). [Also in Groups VI and XVII] Stoppers for hypodermic syringes comprising a resilient body enclosed within a cup of halogenated ethylene, (see Group VI) are moulded in a stainless steel or aluminium mould 20. To form the cup, the interior 21 of the mould is lined with polytetrafLuorethylene which is applied in sheet form or by alternately dipping in or spraying with a dispersion and sintering to form layers. The mould 20 is then filled with rubber which is subsequently vulcanised or caused to set. When an aluminium mould is used, the mould is dissolved away by hydrochloric acid or sodium hydroxide. The inner surface of the polytetrafluorethylene cup may be roughened before the resilient material is added by the application of particles of polytetrafluorethylene metal or ceramic.
Patent GB-1030447-A (GB)
Title: Method of and apparatus for press-fitting two members
IPC: B23P19/02
Filed: 1963-09-10
Abstract: 1,030,447. Assembling force fits. GENERAL MOTORS CORPORATION. Sept. 10, 1963 [Sept. 20, 1962], No. 35653/63. Heading B3U. [Also in Division F2] A method of press-fitting a pair of cylindrical members comprises applying vibratory energy to one of the members in a plane normal to the longitudinal axis of the member. An apparatus for performing the method comprises a pneumatic press having a ram 10 and a vibratory energy device 16 which applies energy to a liner 14 to be inserted into a cylinder bore 4 of an engine 6. The device 16 comprises a disc 17 threaded on a post 18 which also carries a seating member 20 having an upper conical portion 22 and a split skirt 24. Two similar vibrators 26 are mounted adjacent the periphery of the disc 17, each vibrator consisting of a housing 28, Fig. 5 (not shown), clamped to the disc 17, and having a bore 34 containing a sleeve 36 into which air can pass from an annular chamber 40, by tangential passages 42, which are inclined so as to produce in the two vibrators oppositely directed rotations of free rollers 46 which work in the bores 44 of the sleeves 36. The rollers 46 orbit in opposite directions and produce complex vibrations which can be resolved into three motions, viz., a flexural centre-suspended beam type, a flexural twist of the plate 17 and a twist about the axis of the liner. The operating frequency of the vibrators is not less than 100 c.p.s. and is preferably at the resonant frequency of the disc 17. It is important that the vibrators subject the disc 17 to torsion. In an example, a liner having a diameter of 3À7495 inches was inserted into a hole 0À0005 inch smaller, by the method of the invention, using a load of 1275 pounds as against a load of 11,000 pounds without vibration.
Patent GB-1361207-A (GB)
Title: Fluidic pulse counter
IPC: F15C1/12
Filed: 1971-07-29
Abstract: 1361207 Fluidic bi-stable counters HITACHI Ltd 29 July 1971 [30 July 1970 28 Dec 1970 21 May 1971] 35680/71 Heading G4P In a binary counter of the kind in which a main flow from a nozzle 1 is switched to flow alternately through outlet passages 2, 2<SP>1</SP> by pulses, to be counted, fed in at a nozzle 4, which pulses are directed alternately to two control nozzles 3, 3<SP>1</SP> by circulating flows through the passages 5, 5<SP>1</SP>, the flows through the passages 5, 5<SP>1</SP> are increased by providing further channels 7, 7<SP>1</SP> respectively connecting the nozzle 4 with the two outlet passages 2, 2<SP>1</SP> and so shaping the central splitter at 13, 13<SP>1</SP> as to create a vortex 11. When the main flow lies in passage 2 it draws fluid from passages 3, 7 and thus through 5, 51; spin off from the vortex 11 entering passages 3<SP>1</SP>, 7<SP>1</SP> assists the flow. When a pulse arrives at nozzle 4 it is urged by the flow in passages 5, 5<SP>1</SP> to pass along the branch 5 to nozzle 3 where it forces the main flow to switch to outlet passage 2<SP>1</SP>.
Patent GB-1442929-A (GB)
Title: Protective screens for exhaust systems of motor vehicles manufacture of uniformly doped rod-shaped p-conductive silicon monocrystals
IPC: B60K13/04
Filed: 1974-08-14
Abstract: 1442929 Motor vehicle exhaust systems AUTOMOBILES CITROEN SA 14 Aug 1974 [22 Aug 1973] 35710/74 Heading B7H [Also in Division F1] A motor vehicle is provided with a groundprotection screen 8 for protecting the ground beneath the vehicle from the heat of exhaust gases passing through an exhaust duct 1 associated with an internal combustion engine of the vehicle, the ground-protection screen 8 comprising a first layer in the form of a metallic open-mesh fabric and a second layer in the form of a metallic grid. The ground-protection screen is said to allow a limited amount of heat dissipation from the exhaust duct 1 by convection. As illustrated, the vehicle is further provided with heat-insulation screens 5, 5<SP>1</SP> positioned between the exhaust duct 1 and the vehicle body 2. The screen 5 may comprise alumina silicate disposed between two aluminium sheets.