baber/WOPTO huggingface dataset:
Patent GB-1169263-A (GB)
Title: Distillation and power generating method and apparatus
IPC: C02F1/16
Filed: 1967-04-11
Abstract: 1,169,263. Evaporators, flash type; desalination of sea water. AMERICAN MACHINE & FOUNDRY CO. 11 April, 1967 [18 April, 1966], No. 16440/67. Heading B1.B. [Also in Division F1] Heated sea water is passed from line 22 serially through the flash chambers of a multi-stage flash evaporator which are maintained at successively lower pressures, the vapour flashed off from the sea water in the chambers of the stages 106<SP>e</SP>, 106<SP>f</SP> at lowest pressure, preferably in excess of atmospheric pressure, is passed through lines 124, 126 to a low-pressure turbine 38 which is coupled to a generator 40 for producing electric power, and the vapours produced in the other flash stages are condensed directly on the condenser tubes associated with these flash stages. The condensate is. withdrawn from the evaporator to cooler 70. The exhaust steam from turbine 38 is passed to condenser 44, from which the condensate mixes in line 50 with the distillate from cooler 70, thus collecting the desired product, i.e. desalinated water, which is withdrawn from the system. As shown, the evaporator has two sets of flash stages 100, 102, associated with a heater 20 supplied with steam from turbine 128 which is itself supplied with high-pressure steam from nuclear reactor 10. The sea water to be distilled is used as cooling-medium in condenser 44, and is then pumped through either distillate-cooler 70 or a brine-cooler 72. The sea water is then treated with acid and is introduced into deaerator 78 from which carbon dioxide and air are withdrawn by eductor 80, operated by a stream of sea water. The de-aerated sea water is pumped through the condenser tubes 108, 110 of the evaporator, and then flows through heater 20 where the temperature of the water is raised to about 260‹-290‹F. The heated sea water then enters the first flash stage 104a. A portion of the brine from stage 104f is mixed with the feed sea water in the condenser tube of stage 104d, and the remaining brine is fed to the first flash stage 106a of the second set 102. Part of the brine is pumped from the last flash stage 106f through heat-exchange tubes 120, 122 and then mixed in line 116 with the brine flowing into flash stage 106a. The remainder of the brine from stage 106f is discharged from the system through cooler 72. After treatment in deaerator 78, the feed may be preheated by heat-exchange with waste heat from nuclear reactor 10, or bleed steam from turbine 38.
Patent GB-1010294-A (GB)
Title: Roller hearth annealing furnace
IPC: F27B9/24
Filed: 1962-04-30
Abstract: 1,010,294. Roller hearth furnaces. UNIVERSALE INDUSTRIEOFENBAU G.m.b.H. April 30, 1962 [June 20, 1961], No. 16445/62. Heading F4B. In a roller hearth annealing furnace for metallic stock, e.g. metal sheets in which at least a number of the hearth rollers are power driven, a lifting grate is disposed in one section of the furnace and is adapted to reach between the hearth rollers and to be raised and lowered above and below the plane of the hearth rollers. The grate when raised supports the metallic stock and enables it to be heated to higher temperature than would be allowable if it rested on the rollers. In the form shown a furnace is divided into two sections by a movable damper 7 actuated by an hydraulic ram 8. Into section 1 of the furnace is introduced stock to be heated. The stock is propelled through this section on rotating rollers 3 and heated to a temperature which is non-injurious to the hearth rollers 3. The damper 7 is lowered and the stock is conveyed on rollers 3 into a second section 2 of the furnace the damper being raised again after passage of the stock. The stock which is located in the section 2 of the furnace is then raised off of the hearth rollers 3 by means of a lifting grate 11 which is adapted to reach between the rollers 3. The stock is then heated solely from above to the desired final temperature and the rollers are protected from injurious overheating effects by the fact that they lay in a heat shadow of the material being heated and the fact that they are continuously rotating and cooling air is passed through them, the air subsequently being used for combustion. Once the desired temperature is reached the lifting grate 11 is lowered and the stock progresses out of the furnace on the rollers 3. The lifting grate 11 is raised and lowered hydraulically by a ram 13 driven from a pump 15 the grate being guided by means of guiding frames 14. The individual lifting grate element 10 consists of rectangular frames of high-alloy heat resistance material and are lined with fire-proof brick or tamping compound. Coolant chambers or channels may also be provided within the frames.
Patent GB-770944-A (GB)
Title: Improvements in process and apparatus for classifying particulate material
IPC: C09C1/60
Filed: 1955-06-08
Abstract: 770,944. Separating solid materials. PHILLIPS PETROLEUM CO. June 8 1955 [June 14, 1954], No. 16446/55. Class 117. Particles of generally spherical shape are classified by a cylindrical rotatable horizontal drum 23 into one end of which the particles are fed from a rotary pelleting mill 11, the opposite end being open to permit particles to gravitate over the lip of the drum and to be divided into classified streams by a splitter device 24. The splitter is adjustably mounted on a collar 28 clamped to a support 16, and has delivery channels 26, Fig. 3, for the separate streams. The channels may slope in opposite directions as shown in Fig. 1. The height of the particles on the ascending side of the drum is inversely proportioned to their size, and the smaller particles in Fig. 2 are fed to a hopper 36 and may be returned to the mill and the remainder are fed to a hopper 37. A suction line 40, Fig. 2, with a slot 45 withdraws very fine particles from the drum. In the embodiment of Fig. 4 the classifier drum 23 has a larger diameter than the opening 22 in the end plate of the mill 11, and the particles flow into the drum from adjustable openings 43 in the end plate. Two splitter devices 44 are adjustably mounted on an arm 46 attached to a central support 16 and the material is classified into three streams which are fed to receivers 47, 48 and 49. In a further embodiment the classifier drum is an independently driven unit and is fed at one end from a hopper.
Patent GB-1127879-A (GB)
Title: Surge suppressor for protecting a high voltage dc power circuit
IPC: H01T4/18
Filed: 1967-04-11
Abstract: 1,127,879. Lightning arresters. GENERAL ELECTRIC CO. 11 April, 1967 [16 May, 1966], No. 16532/67. Heading H2H. A surge suppressor for a high voltage D.C. circuit comprises a non linear resistor 20 and a pair of spirally arranged gap devices 22, 24 and a voltage divider comprising unequal capacitors 71, 72 each connected to a device through an oscillation damping resistor 80. Coils 30, 30a shunted by an over voltage protective device 50 provides arc lengthening, and resistors 73, 74 provide oscillation damping. A voltage transient on lines 10, 12 causes devices 24 to arc first, most of the voltage then appearing across device 22, 24 being maintained by capacitor 72. An over voltage across coils 30, 30a causes device 50 to arc over, but the circuit is arranged so that the coils give sufficient magnetic force to lengthen the arc. An insulating barrier (57, Fig. 3, not shown) prevents arc bulging from bridging the throat 28. Two suppressors may be connected in series.
Patent GB-1038251-A (GB)
Title: Improvements in imperforate buttons of synthetic plastics material
Inventor: STEINER JOHANN
IPC: A44B1/02
Filed: 1964-04-22
Abstract: An imperforate button made of polyamide synthetic plastics material is sewable by temporarily softening the button by the absorption of 10% by weight of moisture.  The button consists of plastics which may be obtained by the polymerization of caprolactum.  The button may be centrally reinforced on its undersurface by a disc or ring.  The button may be subjected to water treatment immediately prior to sewing or the button may absorb the moisture immediately after manufacture, the buttons then being packed in an air-tight enclosure until used.
Patent GB-183990-A (GB)
Title: Improvements relating to electric relays
IPC: H01H53/10
Filed: 1921-06-18
Abstract: 183,990. Siemens Bros. & Co., Ltd., Ferreira, L. de M. G., and Boot, J. June 18, 1921. Alternating-current relays.-In relays, specially adapted for railway track signalling systems, the closing of the relay contacts is effected by a rotating magnetic field setting in motion a polarized armature 8 which carries the contacts and is mounted on a flexible steel rod 9 adjustably fixed to the base 1; the motion is such that the rod 9 approximately describes a cone about its position of rest. The rotating field is produced by wound pole-pieces projecting inwardly from the core ring 3, and the armature 8 is polarized by two U-shaped magnets 5, 6, attached to the core ring 3. The armature 8 carries a silica or glass air-free container 13 having in it metallic discs 14, 15, 16, centrally pierced for the reception of the metallic balls 21, 22. Normally, each ball is clear of the disc above, but when the armature 8 is set in motion, the balls 21, 22 are thrown outwards, and connect discs 14, 15 and 15, 16 and so complete a circuit 19, 20.
Patent GB-653736-A (GB)
Title: Improvements in or relating to method of growing p-type seed crystals
IPC: C30B7/00
Filed: 1947-06-26
Abstract: Seed crystals of ammonium dihydrogen phosphate and its isomorphs are grown by cutting from a crystal of the salt seed bodies having major faces extending transversely across the Z-axis of crystal growth; planting the seed bodies in a solution of the salt; and causing crystallization on the seed bodies while flowing the solution relative to the bodies in a direction perpendicular to the Z-axes of <PICT:0653736/III/1> <PICT:0653736/III/2> <PICT:0653736/III/3> <PICT:0653736/III/4> the bodies.  An iron salt and ammonium sulphate are preferably present in the solution.  A higher proportion of sound seed crystals is thereby obtained than in the method wherein the flow of solution is parallel to the Z-axis.  Seed plates 5 (Fig. 4), having the major sides 1.5 inch in length, are cut from crystals of ammonium phosphate so that the major faces are perpendicular to the Z-axis.  The plates are planted in a tray as shown in Fig. 7. An aqueous solution saturated with respect to ammonium phosphate at 36 DEG  C., and containing 0.1 grams per litre of ferric ions and 7 grams per litre of ammonium sulphate, and having pH of 4, is added at a temperature of 38 DEG  C. to the preheated tray.  The tray is placed in a chamber through which warm air is circulated, and the tray is rocked so that the solution flows back and forth at right angles to the Z-axis of the plates while the temperature of the air is gradually lowered for five days when seed crystals 2, as shown in Fig. 3, will have grown.  The sound seed crystals are replanted (Fig. 9) and grown into full-size crystals from a solution which is flowed parallel to the Z-axes.  Specifications 653,733 and 653,737 are referred to.
Patent GB-262160-A (GB)
Title: Improvements in mechanical race-game apparatus
IPC: A63F9/14
Filed: 1925-07-01
Abstract: 262,160. Burke, S. Haviland-. July 1, 1925. Race games, mechanical. -A series of superimposed discs 13, 14, 15 are loosely supported on a series of collars 9, 10, 11, keyed to, or formed integral with, a vertical spindle 3. The spindle 3 is rotated through worm gearing 5, 6 by a handoperated crank 4. The racing members are loosely mounted on the outer parts 13<a>, 14<a>, 15a of the discs which are coloured green to represent race tracks. Pins 18 project at irregular intervals from the discs and are adapted to be engaged by a member 19 in the form of a starting gate. The gate is raised and lowered at intervls by a cam 22 mounted on the spindle 3, and while in lowered position temporarily engages one or more of the pins 18, thereby delaying the corresponding disc or discs.
Patent GB-1492715-A (GB)
Title: Electrolytic regeneration of plastics etchants
IPC: C08J7/14
Filed: 1976-04-26
Abstract: 1492715 Regenerating etch solution DART INDUSTRIES Inc 26 April 1976 [20 April 1976] 16923/76 Heading C7B A spent CrO 3 /H 2 SO 4  solution having been used for etching plastics materials is electrolytically regenerated (to oxidize Cr<SP>3+</SP> to Cr<SP>6+</SP> and remove organic material) in the anode compartment of a cell divided by a cation permselective membrane. The solution may be heated before or after electrolysis with increased or reduced pressure to assist in oxidation by Cr<SP>6+</SP> of organic polymer breakdown products. The solution may be undiluted or emanate from a rinse step. In a continuous operation, rinse and etch solution are combined and electrolyzed, and the regenerated product concentrated by evaporation and recycled, with water from the evaporation step returning to the rinse step. Anode materials  listed are Pt, Pb or Pb alloys with Sb, Ag, Se and/or Te; and Pt or Pb peroxide on carbon or metallic substrates. A perfluoropolymer membrane may be used. The anolyte and catholyte may be agitated.
Patent GB-219316-A (GB)
Title: Improvements in or relating to driving-gear for the auxiliaries of internal combustion engines
IPC: F02B67/04
Filed: 1924-07-15
Abstract: 219,316. Birkigt, M. July 18, 1923, [Convention date]. Leakage-preventing devices; impellers combined with braking-discs. - In an internalcombustion engine in which a cam shaft or other variable-resistance element is fitted with a braking-device for preventing chattering of the te.eth of the driving-gear therefor one or more additional braking-devices are provided for the same purpose in connection with other auxiliary apparatus driven from the main engine shaft such as the water or oil pumps. Fig. 5 shows a water pump the shaft d of which is driven from the main shaft through bevel and helical gears and is fitted with a metal disc f<1> which is pressed against a fixed disc f of fibre by a spring g. This spring may be arranged between the end of the shaft d and the pump casing, or may encircle the shaft as shown. In the latter case, the spring may bear against similar braking-disc at its other end, or, as shown, against a multiple-disc brake k<1>, k<2>. The discs k<1> are fixed to the cap e<3> of the casing by projections k<10>, Fig. 6, entering grooves formed in a sleeve extension e<4> of the cap, while the discs k<2> engage a square on, or have other driving-connection with, the shaft d. The discs f, f<1> also provide an hermetic sealing between the shaft d and the pump casing.
Patent GB-239969-A (GB)
Title: Folding ladder
IPC: E06C1/56
Filed: 1924-07-16
Abstract: 239,969. Holling, L. July 16, 1924. Ladders.-Folding ladders have side stretchers formed of rods or tubes N with flattened ends and treads formed from sheet-metal blanks so shaped at the ends that when bent the bearing lugs C, Fig. 1, or L, Fig. 3, are formed to contact with the ladder sid'es and determine the open and closed positions of the treads. The front and back edges of the treads are recessed back and the edges may be bent downwards to give added strength. The treads and side stretchers are loosely pivoted to bearer rods B and the joints may be strengthened by strip or wire inserts Y, Fig. 8. The ladder is supported at the top end by hooks V and chains W.
Patent GB-790792-A (GB)
Title: Improvements in two-revolution printing presses
IPC: B41F3/80
Filed: 1955-06-14
Abstract: 790,792. Printing machines. FAIRWEATHER, H. G. C. June 14, 1955, No. 17058/55. Class 100(2) Cylinder machines. A two-revolution printing press, in which the reciprocating type-bed as well as the rotating impression cylinder are driven from the driving shaft by means of gearing, comprises a damping device for eliminating vibration, consisting of two co-axial gear wheels which are movable in relation to one another against the action of a spring and are as a wheel unit an integral part of the gearing. Meshing gear wheels 1, 2, Fig. 1, are mounted one fast on the driving shaft and one fast on the impression cylinder shaft, while a third gear wheel is mounted co-axially and in contact with the wheel 2. A rod 6, Figs. 1 and 3, is attached to a ballshaped foot 7 arranged in a corresponding recess in said third wheel, and the other end of the rod 6 is slidable in a bore in a pivot 10 attached to the wheel 2. A spring 5 surrounding the rod 6 is supported by collars 8, one of which is slidable on the rod. The length and tension of the spring is adjustable by a device 9, consisting of a washer exchangeable for a thicker or thinner one.
Patent GB-219794-A (GB)
Title: Weighing scales
IPC: G01G1/00
Filed: 1923-07-02
Abstract: 219,794. Hem, H. O., and Toledo Scale Co. July 2, 1923. Pendulum-weight apparatus; relieving-mechanism.-The invention relates to platform machines of the pendulum-weight type in which the pendulum-weights are locked and a lever in the mechanism is raised to prevent damage to the apparatus, and consists in raising the lever by means of a stirrup. The locking-device is operated by a handle 26, which also serves as a hasp, and which rotates a cam 14 supporting a link 15. A link 16 depends from the link 15 and surrounds a lever 10, which may carry adjusting-weights 12. The cam 14 engages the foot 25 of a link 24, which carries locking-rods 18 engaging hooks 20 on the weights 8. On rotation of the cam 14, the lever 10 is raised by the link 16 to allow the weights 8 to fall into their lowest position, and the link 24 is then depressed by springs 23 to lock the weights. Specifications 15724/13 and 173,521 are referred to.
Patent GB-111177-A (GB)
Title: An Improved Apparatus for Heating and Distributing Air for Warming Workshops, Rooms and the like.
Inventor: SMITH DONALD VINCENT HARCOURT
IPC: F28D1/02
Filed: 1916-11-29
Abstract: 111,177. Smith, D. V. H., and Conner, S. J. Nov. 29, 1916. Air, treating; ventilators.-The air supply to a room is forced by a fan B upwards through horizon.. tal sinuous steam or hot water coils F and is dis. charged into the room through an adjustable head H. The coils aro arranged one above the other and are connected to vertical headers P. The sides of the U bends of a coil are bent inwards. The hood is provided with a conical deflector J, and is supported upon the discharge trunk G by bolts and nuts M for adjusting the distance between the hood and the top of the trunk.
Patent GB-837708-A (GB)
Title: High-power resonance absorption isolator
Inventor: BLASBERG LAWRENCE ABRAHAM
IPC: H01P1/365
Filed: 1957-05-29
Abstract: 837,708. Waveguide isolators. HUGHES AIRCRAFT CO. May 29, 1957, No. 17111/57. Class 40 (8). A resonance absorption isolator comprises one or a pair of ferrite slabs 18, 20 each arranged in a rectangular waveguide midway between the centre-line of a broad wall and the edge with a flat side contiguous to the wall. The pole pieces 22, 24 of an electromagnet or a permanent magnet 26 are arranged to produce in the slabs a transverse field having an intensity distribution 30, Fig. 5, such that gyroresonance is effected within the slabs over a range of frequencies including the working frequency. The direction of the field is such that resonance is excited by the return wave within the guide, i.e. the wave reflected from load to source. The maximum field intensity occurs at the point in the guide where the magnetic vector of the wave is circularly polarized and decreases to a value insufficient to produce resonance at the centre line of the guide. The edges of the pole-pieces 22, 24 lie within slots in the waveguide walls. The ferrite slabs do not completely cover the faces of the pole-pieces. It is stated that by using three different magnetic materials all having Curit temperatures of about 600‹ C. in the magnetic circuit, the characteristics of the isolator may be prevented from variation with temperature.
Patent GB-120462-A (GB)
Title: Improvements in and relating to Artificial Feet.
Inventor: SCHRANZ PAUL
IPC: A61F2/60
Filed: 1917-11-24
Abstract: 120,462. Schranz, P., and Schranz, R. Nov. 24, 1917. Limbs, artificial.-A foot comprises a wooden body f hollowed out beneath to receive an inflatable bag g which is covered by a steel sole-plate f<2>. The plate f<2> has upstanding flanges f<3> which are bent over to engage pads f<4>, f<5> at the front and rear. The pad f<5> is supported on a plate f<6> connected to the foot by a pin f<7> which may be withdrawn to allow the removal of the sole-plate. In the event of puncture of the bag, the soleplate forms a surface continuous with the rest cf the foot.
Patent GB-530061-A (GB)
Title: Improvements in or relating to refrigerating apparatus
IPC: F25B35/04
Filed: 1939-06-14
Abstract: 530,061. Refrigerating. KLEEN, N. E. A. June 14, 1939, No. 17399. Convention date, Nov. 21, 1938. [Class 29] Absorption systems.-The generator-absorber of a reversing system employing a solid absorbent such as strontium or calcium chloride is charged with a quantity of salt so large that even when the refrigerant has been expelled the salt is still subjected to compression: The generatorabsorber comprises a central tube 2 for the heating means surrounded by a pipe 4 to form an annular space for a cooling agent. Trays 6 with flanges 8, 10 are fitted on the pipe 4 between stay-plates 12, 14 welded to the pipe 4, the whole being enclosed by a casing 16. The trays may have internal screw threads engaging a thread on the pipe 4. The pipe 34 leading to the condenser opens into a liquid trap 36 and apertures 15 for the vapour are provided in the stay-plate 12 backed by metallic cloth 32. The trays are cut away at 22 and the outer flanges 10 are cut away at 24 for charging the salt, and holes 26, 28, 30 in the trays constitute channels extending longitudinally. In charging, the trays are filled with dry salt and the salt plug which extends through the apertures 22 ejected by a suitable tool leaving the required quantity of salt. Or the trays may be filled to the level of the cutaway portions 22. In a modification the trays are of smaller diameter than the outer casing leaving an annular space for the swelling of the salt. To improve the conduction of heat substances such as lithium-nitrate, zinc cyanide, zinc thiocyanide &c. may be added to the salt. The generator may be filled completely with absorption medium mixed with a substance such as camphor, sal ammoniac, ammonium carbonate &c. which can be driven off, e.g. by heating, in such proportions that the desired quantity of absorption medium then remains..The salt may be allowed to retain a proportion of its water of crystallization which is subsequently driven off. Specification 417,044 is referred to.