baber/WOPTO huggingface dataset:
Patent FR-1354730-A (FR)
IPC: A47C1/032
Filed: 1963-05-07
Granted: 1964-06-12
Abstract: 1,038,093. Reclining chairs. GENERAL STEEL PRODUCTS Inc. May 8, 1963 [May 9, 1962], No. 18135/63. Heading A4J. A self balancing reclining chair fixture 36 comprises a base link 38 affixable to a base member 14 of a chair and a seat link 50 affixable to a seat side frame member 22. A bell crank 54 is pivoted at 42 to base link 38 and at 60 to seat link 50. A rear link 46 is pivoted at 44 to base link 38 and at 48 to seat link 50. Links 54, 46 support seat link 50 on base link 38 for swinging movement between normal and reclined positions of the chair. The limit of the normal and reclined positions is defined by a pin 62 on seat link 50 engaging in a slot 64 in bell crank 54. Seat link 50 is pivoted at 48 to a back link 66. A control link 70 is pivoted at 72 to back link 66 and at 74 to bell crank 54. When the back link 66 is pivoted rearwardly about pivot 48 link 70 will swing seat link 50 upwardly and forwardly. The position of pivot 74 is such that the pressure of an occupant of a chair against the back will balance the weight of the occupant on the seat so as to maintain a static balance of the chair throughout its range of movements.
Patent GB-1343739-A (GB)
Title: Catalyst composition
IPC: B01D53/94
Filed: 1972-01-10
Abstract: 1343739 Catalyst FUJIKURA CABLE WORKS Ltd 10 Jan 1972 [9 Jan 1971 4 Oct 1971] 1025/72 Heading B1E A catalyst composition for reducing the concentration of oxides of nitrogen in the exhaust gas from an internal combustion engine comprises a carrier material having nickel and/or copper associated therewith, the nickel and/or copper having been brought into association with the carrier material by heating a mixture of the carrier material with a source of nickel and/or copper in the presence of a halogen source, at an elevated temperature and for a time sufficient to produce the catalyst composition, in an atmosphere containing carbon monoxide produced from carbonaceous substances containing a small amount of water therein and air. In the Examples, graphite flakes are heated with (1) NiO and NiBr 2 , (2) NiO, NiCl 2  and CuCl, (3) NiO and CuCl, (4) CuO and NiCl 2 , (5) CuO, NiCl 2  and LaCl 3 , (6) CuO, CuCl and Fe 2 O 3 , (7) CuO, CuCl and NiCl 2 . The carrier may also be graphite granules, blocks, chips, rods, pipes, plates, saddles or Raschig rings, or "Alundum" (Regd. T.M.), alumina, silica, magnesia, thoria, carborundum or titanium carbide or mixtures thereof.
Patent GB-437774-A (GB)
Title: Improvements in view-taking apparatus with two or more photographic cameras
IPC: G03B19/02
Filed: 1935-01-11
Abstract: 437,774. Photographic surveying. SOC. ANON. DES USINES GALLUS, 77, Boulevard de la Mission - Marchand, Courbevoie, Seine, France. Jan. 11, 1935, No. 1065. Convention date, Jan. 12, 1934. [Class 98 (i)] In photographic apparatus employing two or more cameras, particularly for use in aeroplanes, artificial details, for example crosses, are imprinted on the sensitized plates and arrangements are provided for regulating the positions of these details before the photographs are taken so that they may be made to coincide with the images of features common to the two or more views photographed by the several cameras or with parts common to the several plates for the purpose specified. As shown, a small cross 5 illuminated by the lamp 6 is reproduced on the sensitized plate 13 by the optical system comprising the lens 8, prisms 10 and 11, and the lens 9 whenever the shutter 7 is opened. Alternatively a small cross on the objective may be transmitted to any point of the plate by an adjustable lens and prism system.
Patent GB-1367466-A (GB)
Title: Production of articles coated with silicon carbide
IPC: G21C3/62
Filed: 1971-01-08
Abstract: 1367466 Silicon carbide coated particles UNITED KINGDOM ATOMIC ENERGY AUTHORITY 21 Dec 1971 [8 Jan 1971] 1119/71 Heading C1A A coating of pyrolytic silicon carbide is deposited from the vapour phase on to a carboncoated nuclear fuel kernel, the outer layers of the coating being deposited at a lower rate than the inner layers. The coating may be formed by reduction of methyltrichlorosilane in a fluidized bed. A pyrolytic carbon layer may be deposited from methane on to the carbon coated fuel particle to provide a substrate which is substantially defect-free. This layer, which may be 5-10 Ám thick, may be deposited at 1300‹ C. under a partial pressure of 200 mm Hg, and the primary SiC coating may be deposited at the same temperature to avoid thermal stress. Preferably the primary deposition of SiC is deposited in the temperature range 1200-1700‹ C. at 1-2 microns per minute, and the outer layer at less than 0À2 microns per minute at 1500‹ C.
Patent GB-895108-A (GB)
Title: Switch actuating mechanism
IPC: H01H13/18
Filed: 1960-01-13
Abstract: 895,108. Retractive switches. SQUARE D CO. Jan. 13, 1960 [Feb. 13, 1959], No. 1198/60. Class 38 (5). A limit switch has an actuating plunger 42 biased outwardly by a spring 62 and capable of being adjusted angularly. The plunger carries a pin 140 which can be placed in slots 70 or 72 of a member 54 which is non-rotatable in the housing 12, and which is acted on by the spring 62. The member 54 bears on an actuator 58 pivoted at 122 on a member 88 and is biased counterclockwise by a spring 60, which is normally overcome by the spring 62, so the actuator is as shown in Fig. 11. When the plunger 42 is depressed, the member 54 compresses the spring 62 and moves away from actuator 58 which is thus tilted by spring 60 to engage the operating button 30 of a snap-switch 28, sealingly secured to the housing 12. The member 88 is adjustable axially of the plunger 42 to vary the projection of the plunger by an eccentric 102 arranged in an aperture 96 in a member 92 attached to the pivot.
Patent GB-851705-A (GB)
Title: Improvements in or relating to variable speed hydraulic transmissions
Inventor: CAMERON-JOHNSON ALAN
IPC: F16H39/08
Filed: 1956-01-13
Abstract: 851,705. Hydraulic transmissions. BRITISH MESSIER Ltd. Jan. 11, 1957 [Jan. 13, 1956], No. 1293/56. Class 69 (2). An hydrostatic transmission comprises pump and motor cylinders formed in an input driven cylinder block 17, the motor pistons co-operating with a swash-plate 23 on an output shaft and the pump displacement being variable to vary the transmission ratio. The motor comprises axial cylinders 26 and has a spool valve 33 associated with each cylinder, the spools being reciprocated by a cam 46 fast with the swash-plate. The pump comprises radial cylinders 47, 48 disposed between adjacent motor cylinders and having pistons reciprocated by eccentrics 54, 55 which are interconnected through epicyclic gearing so that the eccentrics can be adjusted simultaneously in opposite directions to vary the phase of the pistons and hence vary the pump displacement. When the pump pistons are 180 degrees out of phase the pump output is zero, and the motor pistons are locked so that a 1 : 1 drive is obtained. Variation of phase of the pump pistons increases the pump output up to a maximum when the phase is the same, so that the motor is driven and an output speed greater than the input speed is obtained. The pump discharges through non- return valves 50 into a duct 41 whence the liquid passes to the motor cylinders under the control of the valves 33. The liquid enters a motor cylinder through a port 38, passes around a reduced portion of the piston and through a bore in the piston to the closed end of the cylinder. The motor cylinders discharge into a reservoir 44 formed in the cylinder block. The pump pistons have grooves and bores providing a connection between the reservoir and the pump cylinders at the inner ends of the stroke of the pump pistons. In a modification the swash-plate drives an output shaft through step-down gearing so that speeds less than the input speed may be obtained, and the pump eccentrics may be adjusted by an output driven governor to maintain a constant output speed.
Patent GB-201879-A (GB)
Title: Improvements in or relating to the treatment of silicious ores
IPC: B03B1/02
Filed: 1923-01-15
Abstract: In a process for treating silicious ores, especially oxidized or partly oxidized lead, gold and silver ores, the ore is ground and heated to a temperature above 1700 DEG  F. and below its melting point being exposed at that temperature to a current of oxidizing gas.  The volatilized metals or oxides, such as lead oxide, are separated from the flue gases.  The ore may be first submitted to gravity concentration or flotation or both, and the tailing from such treatment subjected, preferably in the form of a slurry, to treatment at the specified temperature which does not exceed 2500 DEG  F.
Patent GB-1080802-A (GB)
Title: Mechanical seal with flow control
IPC: F16J15/34
Filed: 1965-01-12
Abstract: 1,080,802. Mechanical seals. BORG WARNER CORPORATION. Jan. 12, 1965 [Feb. 27, 1964], No. 1375/65. Heading F2B. In a mechanical seal for a rotary pump shaft 13, fluid flow between the sealing faces 31, 32 of rings 16, 26 is controlled by deflection of the front portion 40 of the ring 16 in response to variations in the fluid pressures acting on the sealing face 31 and area 46 and to variations in the fluid pressure in a chamber 33 which is formed between a neck portion 38 and a closure ring 34 and communicates through passages 42, 43 with the sealing faces. The ring 16 is urged into engagement by a spring 24 acting through a member 18 and a U-packing 25 and is driven from the shaft by pins 22. The ring 26 is held against rotation by pins 27 and is formed with a groove 44 on its sealing face. In operation, the front portion 40 of the ring 16 bends about the neck portion 38 and fluid is communicated through the passages 42, 43 to the chamber 33 where it opposes the fluid acting on the sealing face 31 and area 46 to reduce the wedge-shaped opening between the sealing faces.
Patent GB-879136-A (GB)
Title: Coated photoflash lamp
IPC: F21K5/08
Filed: 1959-01-14
Abstract: A lacquer for coating photoflash lamps comprises an uncured mixture of cellulose acetate and a compound causing cross-linking of the cellulose acetate when subjected to the heat developed on flashing of the lamp.  Preferably the cellulose acetate is mixed with N, N1, N11 tris (methoxymethyl) melamine.  The melamine product may be obtained by reacting melamine and formaldehyde in a molar ratio of 1 : 3 to obtain trimethylol melamine, which is then reacted with methanol in the presence of an acid catalyst.  In an example, a lacquer was prepared consisting of 20 parts cellulose acetate, 58 parts acetone, 14 parts denatured ethyl alcohol, 7,6 parts diacetone alcohol and 0,4 parts dibutyl phthalate, all parts being by weight.  To this lacquer was added 2% by weight of an aqueous solution of the melamine product, which contained 80% of the N, N1, N11 tris (methoxy methyl) melamine.
Patent GB-283896-A (GB)
Title: Improvements in weighing apparatus
IPC: G01G1/00
Filed: 1928-01-17
Abstract: 283,896. Rothm³ller Akt.-Ges., S. Jan, 19, 1927, [Convention date]. Pendulum-weight apparatus.-In a weighing apparatus of the pen. dulum-weigbt type the knife-edge of the pendulum lever rests on e bearing which moves substantially in synchronism with, and in the same direction as the knife edge. A lever 8 distributes the pull due to a load on the platform between twc bands 9, 10 in substan. tially equal proportions. The band 10, acting on a segment 7, deflects a pendulum weight 6 secured to a hub 5 actuating two pointers to indicate higher and lower orders of weight respectively. The hub 5 is mounted by means of a knife-edge 2 on a bearing carried by a shaft 1 supported in ball-bearings. The band 9 actuates a pendulum weight 3, or a spring, connected to the shaft 1 and thus gives the bearing of the knife-edge 2 a rotation substantially the same as the knife-edge itself and permits of a large angle of deflection of the pendulum whilst maintaining a high sensibility.
Patent GB-1410982-A (GB)
Title: Boxes
IPC: B65D5/44
Filed: 1972-01-13
Abstract: 1410982 Reinforced box KODAK Ltd 11 Jan 1973 [13 Jan 1972] 1634/72 Heading B8P A box comprises a tray and a lid, one or both of which comprises two interfitting trayshaped shells 1 and 2 having L-shaped inserts 6 disposed between the side walls 4 and 5 and the major panels 7 and 8 thereof. The inserts 6 may be of extruded plastics material. A sheet 3 of corrugated fibreboard or corrugated plastics material is sandwiched between the major panels 7 and 8. The shells 1 and 2 are held together by a paper cover 9.
Patent GB-289141-A (GB)
Title: Improvements in or relating to cigarette making machines
IPC: A24C5/39
Filed: 1927-01-20
Abstract: 289,141. Molins, W. E. Jan. 20, 1927. Cigarette - making machines. - In feeding arrangements for machines of the continuous-rod type, the brushing roller 1 has periods of maximum rotational speed which are greater than the intervening period of rest or slower rotational speed. This may be effected through a ratchet and pawl mechanism 6, 5 and a rod 9 which is pivoted to a slotted link 10. A block 13 mounted on a pin. 14 which is rotated about a spindle 15, oscillates the link 10; the connection between the rod 9 and link 10, and also the distance between the axes 11, 15 are variable for adjusting the periods of movement of the roller 1. A minimum rotational speed may be given to the roller 1 by means of a free-wheel mechanism, the ratchet and pawl drive being superposed on this slow movement; or the change from the lower to the higher speed may be effected gradually by the mechanism described! in Specification 257,371, [Class 80 (i), Gearing, Belt &c.]. Specification 249,575 also is referred to.
Patent GB-418288-A (GB)
Title: Improvements in or relating to hand trucks, hand trolleys and the like
IPC: B62B1/10
Filed: 1933-01-18
Abstract: 418,288. Hand - trucks; rest - bars. STEINER, J., 61, Boulevard du Bois le PrÛtre, Paris. Jan. 18, 1933, No. 1685. Void [Abridged as open to inspection under Sect. 91 of the Acts, July 20, 1933]. [Classes 108 (i) and 108 (ii).] In hand-trucks in which the load carriage is capable of longitudinal movement relatively to the truck wheels, the latter are mounted on rollers adapted to roll in the side girders of the truck frame. As shown in Fig. 1, the load support 9 is clamped to the frame 1, 2 and the wheel carriage comprises an axle 12, Fig. 3, adapted to slide longitudinally of the frame by means of rollers 16, 17 engaging in the frame girders 1, 2 and carried by cheeks 13, 14 and centre part 15. Fig. 5 shows an arrangement wherein the wheel carriage 13, 14 slides in the frame by means of rollers 21, 22 under the control of a spring 24 and the wheel carriage may be held in any adjusted position by a rod 26 which may be clamped to the handle 6. The wheel carriage may incorporate suspension springs 28, 29, Fig. 8, and a support or prop 32 having a wheel 33 may be pivoted to the wheel carriage at 31 which prop may have a primary spring 35 to urge the prop into the position shown to keep the truck upright when at rest and also to brake the pivotal movement of the prop incidental to the movement of the wheel carriage. A secondary spring 39 is attached to a link 37 pivoted to the prop and to the frame. Locking bars may be provided to retain the wheel carriage in either of its limiting positions.
Patent GB-1094203-A (GB)
Title: Process for the concentration of uraniferous ores
Inventor: BERRI RINO
IPC: C22B60/02
Filed: 1966-01-13
Abstract: A uranium salt solution, e.g. the sulphate, is prepared from uranium ores containing tetravalent uranium as compounds widely dispersed in a divided state in an alumino-silicate and/or basic carbonate gangue by grinding the ore, adding to it a metal sulphide, gypsum, or sulphur, an alkali or alkaline earth metal chloride, and free silica, if not already present, in a quantity such that the total proportion of silica is double that of the CO2 present in the ore; and heating the mixture at a temperature of 750-900 DEG  C.; the alumino-silicate and basic carbonate gangues are converted into a complex solid, acid-resistant matrix from which the uranium may be leached with an aqueous acid to give the above mentioned solution.  The proportion by weight of metal sulphide, gypsum or sulphur in the mix may be such that the proportion by weight of sulphur in the mixture is between 1.5 and 4% and the amount of alkali or alkaline earth metal chloride is such that the proportion of chlorine in the mixture is more than 3%.  The preferred heat treatment is for one to two hours at a temperature of 850 DEG  C.  The heat treatment may be performed directly on the powdered mixture or the mixture may be granuled prior to treatment, and after treatment the powder or granules are formed into a pulp by, in the case of the powder, quenching in a solution of strong mineral acid, e.g. H2SO4, preferably at a temperature of 85 DEG  C., the proportion by weight of ore and reagents to aqueous solution being between 1/2 and 3/2 depending on outlet temperature, or in the case of the granules by mixing 1 metric ton of mixture with 400 litres of aqueous H2SO4, in both cases the initial acidity of the aqueous acid being determined so that the residual free acid in the pulp has a pH of 1 (0.1 N).  The pulp or paste is then diluted with further acid solution to dissolve out the uranium, when after filtering the uranium containing liquor is subject to standard uranium extraction processes, e.g. solvent extraction with amines or alkyl phosphates, and precipitation of the uranium as uranates with NaOH or MgO.
Patent GB-824532-A (GB)
Title: Sewing machine lubricating arrangement
IPC: D05B71/00
Filed: 1958-01-20
Abstract: 824,532. Reciprocating pumps. SINGER MANUFACTURING CO. Jan. 20, 1958 [Feb. 15, 1957], No. 1815/58. Class 102(1). [Also in Group XXXIV] In a sewing machine lubricating arrangement comprising a closed splash-lubricated compartment 7, the bottom of which forms a main lubricant reservoir excess lubricant which is delivered to feeding and looper mechanisms, located in a space 11 outside the compartment 7, is returned to the main reservoir by a manually operated pump 40 secured to the machine beneath the compartment 7 and space 11. The pump 40 consists of a cylinder 55 containing an apertured piston 65 having a spring-pressed valve plate 70, the end of the piston rod 62 being bent to provide a handle 64. Lubricant from the bottom of the space 11 passes through a filter 76, sediment trap 82, sump 84 and inlet aperture 85 to the cylinder 55. Periodically the machine operator pulls the handle 64 whereby movement of the piston 65 to the right forces the lubricant through an outlet port 87 and discharge tube 89 into the main reservoir in compartment 7. Holes 93 at the top of the tube 89 are located at a level above the normal level of lubricant in the reservoir, and the top of the tube 89 is closed by a cap 90.
Patent GB-412312-A (GB)
Title: Improvements in combined tape measures and slide rules
IPC: G01B3/10
Filed: 1933-01-19
Abstract: 412,312. Slide-rules; measures of length. BRACHVOGEL, O., 2, Wohlgemutstrasse, Baumschulenweg, Berlin. Jan. 19, 1933, No. 1836. [Classes 106 (i) and 106 (ii).] In combined slide-rule and steel tape measure the band is bent upon itself and connected by two shiftable hinged clips which can be secured to the bent-over band part and which serve as guides for the other band part. The tape has a curved cross-section and is provided with logarithmic scales in addition to the ordinary linear scales. Each clip comprises a part 3 provided with ears 5 enabling it to slide on the portion 2 of the band. The clips are secured to the bentover portion 1 between a hinged part 15 and the part 3, the part 15 being secured by a spring 4 which engages a pin 16. When not in use, the clips are stored in a cap slipped on to the tapemeasure case.
Patent GB-888921-A (GB)
Title: Light amplifier
IPC: H01L31/14
Filed: 1960-01-19
Abstract: 888,921. Electroluminescent devices. NIPPON ELECTRIC CO. Ltd. Jan. 19, 1960 [Jan. 20, 1959], No. 1898/60. Class 39(1) A light amplifier comprises a photoconductive layer 7 having dale portions 11 with high light sensitivity and ridge portions 14 with low light sensitivity, an electroluminescent layer 3, and an opoque layer 4 interposed therebetween and composed of an array of discrete electrically high-conductive metal film Dortions 5 which are not in direct electrical contact with each other and are positioned below the photoconductive portions 11, whereas the gaps 13 or opaque partitions 6 of insulating material, Fig. 2, between the metal film portions 5 are below the photoconductive portions 14. Transparent metal film strips 15 are located on the ridge portions 14 and a transparent metal film 2 and glass plate 1 are located on the electroluminescent layer 3. The photoconductive layer 7 can be of cadmium sulphide mixed with a binder such as an epoxy resin, the portions 5 can be of silver or aluminium over 1 micron thick and the insulating partitions 6 can be of non-photoconductive cadmium sulphide, the portions 5 and partitions 6 being formed by evaporation processes. The amplifier can be made by bonding two sub-assemblies 1, 2, 3 and 4, 7, 15. In a modification a woven network 10, Fig. 3, of an opaque high molecular dielectric or plastic receives the metal portions 5. Alternatively the metal portions 5 are formed within a metal net mould which is then removed and replaced by the opaque woven net 10.
Patent GB-460473-A (GB)
Title: Road construction
IPC: E01C3/00
Filed: 1936-01-21
Abstract: 460,473. Road foundations. MURALT, R. R. L. DE. Jan. 21, 1936, No. 1961. Convention date, Jan. 22, 1935. [Class 107] The wearing surface 4 of a road is supported by a layer of sand 3 which is fully enclosed within a trough-shaped structure 1, 2, composed of steel sheets. The trough prevents distortion and displacement of the sand and, in the construction shown, is braced by tension rods 10 connected to the vertical side walls 1. These walls are formed with extensions 7<1> which form cutting edges and thus ensure that the trough attains its final settling in a short space of time. The bottom 2 of the trough is formed of jointed plates having drainage openings which may be covered with gravel or other coarse material. The wearing surface may consist of concrete, macadam, or the like. The Specification as open to inspection under Sect. 91 describes also an arrangement in which the plates of the side walls are all, or every second one, driven into the ground, and another arrangement in which some or all of the base plates are extended beyond the planes of the vertical walls. A modified construction is also described in which the sides of the trough are formed of concrete members 13, Fig. 3 (Cancelled). In the construction shown a central member forms a wall common to two adjacent troughs. The bases of the troughs are formed of metal plates 14. The invention is also employed as a support or foundation for that portion of the road which carries tram rails. This subject-matter does not appear in the Specification as accepted.