baber/WOPTO huggingface dataset:
Patent GB-704861-A (GB)
Title: Improvements in and relating to coating compositions
Inventor: BOND EDWARD JOHN
IPC: C09D5/08
Filed: 1950-06-30
Abstract: A resinous coating composition contains as a ferrous-corrosion inhibiting ingredient the benzoate of an alkaline earth metal, or of lead, or of zinc, or mixtures of these in an amount at least 2 per cent. by weight of the whole composition, and substantially no highly water-soluble salt of an organic acid.  The compositions may also contain red lead or zinc chromate.  The benzoates may be formed in situ by reaction of, e.g. the metal oxide with benzoic acid.  A stoving finish comprises dehydrated castor oil modified alkyd medium and lead benzoate.ALSO:A coating composition contains as a ferrous-corrosion inhibiting ingredient the benzoate of an alkaline earth metal, or of lead, or of zinc, or mixtures of these, in an amount at least 2 per cent. by weight of the whole composition, and substantially no highly water-soluble salt of an organic acid.  The benzoates may be added to paints containing drying oils and/or natural or synthetic resins, stoving finishes, water paints and emulsion paints.  The compositions may also contain red lead or zinc chromate.  The benzoates may be formed in situ by reaction of, p e.g. the metal oxide with benzoic acid.
Patent GB-1468507-A (GB)
Title: Platform for providing an offshore structure
IPC: B63B35/44
Filed: 1974-04-05
Abstract: 1468507 Pipe couplings KENNETH FORBES (PLASTICS) Ltd 5 April 1974 [5 April 1973] 16349/73 Heading F2G [Also in Division E1] A tubular leg member 2 of an oil rig is sealed at one end by a rigid frangible plate 3 of conical shape such that buoyancy of the leg member is maintained for ease of transportation. When the rig is in position the pile 1 located inside, and concentric with, the leg member is driven into the sea bed fracturing the plate, this fracturing being induced to occur at the outer part of the plate by the presence of grooves and a portion of reduced thickness 6 directly under the pile 1. An annular flexible gasket ring 8 is located over an outer flange of the plate to form a seal between the driven pile and the tubular member and the assembly is secured by a ring or collar 10 of angle section bonded to the flexible ring 8.
Patent GB-637980-A (GB)
Title: Improvements in and relating to foldable or collapsible chairs
IPC: A47C4/50
Filed: 1948-06-17
Abstract: 637,980. Seats. HUXLEY ENGINEERING & WELDING CO., Ltd., HUXLEY, P. J., HUXLEY, F. D. A., and ROSEN, M. P. June 17, 1948, No. 16351. [Class 52 (ii)] A deck chair is convertible into an erect back chair. As shown the deck chair comprises a main frame 1, a secondary frame 4 pivoted thereto at 5 and a strut frame 9 pivoted to the main frame at 11 its free end normally engaging a transverse member 7 on the secondary frame while the canvas or like a is secured at the top 2 of the main frame, passes over the front member 6 of the secondary frame 4, under a transverse member intermediate of the secondary frame and is finally secured to the free end of the strut frame 9. To convert the chair the strut frame 9 is rotated forwardly so that its free end engages the front member 6 of the secondary frame and is clipped thereto by a clip 20. Spring slats 12 on the strut frame 9 together with the canvas a then form a horizontal seat for the converted chair.
Patent GB-701126-A (GB)
Title: Improvements in or relating to reinforced roof and floor constructions consisting ofslabs of light-weight concrete or the like
IPC: E04C2/06
Filed: 1951-07-11
Abstract: 701,126. Floors; roofs. INTERNATIONELLA SIPOREX AKTIEBOLAGET. July 11, 1951 [Aug. 30, 1950], No. 16398/51. Class 20(4) In a floor or roof formed of elongated concrete slabs laid side-by-side with their ends resting on supports, mutual displacement of the beams as the result of earthquakes &c. is prevented by forming shallow transverse grooves in the upper surface of each slab so that when the slabs are in position, the grooves are aligned, reinforcing rods then being embedded in concrete in the grooves. As shown, each slab 1 is made of lightweight concrete reinforced longitudinally and formed with a rebate 3 along one of its upper longitudinal edges and with a number of shallow grooves 5 across its upper surface. The slabs are laid side-by-side with their ends resting on walls 2 and reinforcing rods 3a, 4a and 5a are placed in the longitudinal rebates 3, in spaces 4 left between the ends of adjoining slabs and in the aligned grooves 5 respectively. The rods, which may be lashed or welded together where they intersect, are then embedded in concrete which is filled into the grooves and rebates. Specification 323,002, [Class 20 (iv)]. is referred to.
Patent GB-596778-A (GB)
Title: Electro-acoustic transmission plant for reproduction in places with noise disturbances
IPC: H03G3/24
Filed: 1943-10-07
Abstract: 596,778. Automatic volume control. BAUMGARTNER, H. Oct. 7, 1943, No. 16459. [Class 40 (iv)] In a system, such as a public address system, in which reproduction takes place in conditions subject to noise disturbance and in which the output level is regulated automatically in accordance with the noise level, the sound picked up by a microphone is converted into a value characterising the noise level and is fed to a regulating device in the transmission channel which comprises a plurality of relays which respond individually and the operation of each of which is separately adjustable by an individual auxiliary member so that for each of a number of noise levels the output level exceeds the noise level by a predetermined amount, which amounts may be found experimentally and vary with the type of noise and the acoustics of the place of reproduction. As shown in Fig. 6, useful sound and disturbing noise are picked up by the microphone 14 and are amplified before application to a band-pass filter 22 which accepts a band of frequencies characteristic of the noise, say 4000-5000 c.p.s. After further amplification, this band is passed through a non-linear network in order to produce greater sensitivity at low noise levels than at high levels and is then rectified by the bridge W4-W7 and applied to the relays A1-An in parallel. Operation of these relays in turn as the noise level rises switches increasing amounts of the output of the main transmitting channel to the transmitting loudspeaker L by means of the potential divider P, the level at which each of the relays operates being controlled by the resistors R1-Rn, which are adjusted to produce the desired regulation curve.
Patent GB-1299397-A (GB)
Title: Improvements in or relating to processes for reducing the oxygen content of molten copper
IPC: C22B15/14
Filed: 1970-04-07
Abstract: 1299397 Blowing lances KENNECOTT COPPER CORP 7 April 1970 [5 May 1969] 16487/70 Heading F4B [Also in Division C7] A blowing lance for the gaseous refining of molten copper may be constructed of a graphite tube with a 0À25 inch ID quartz insert.
Patent GB-497392-A (GB)
Title: Improvements in and relating to the synchronising of the rollers of ironing or like roller machines
Filed: 1937-06-14
Abstract: 497,392. Automatic control systems. POINTON, J. E., and BAKER PERKINS, Ltd. June 14,1937, No. 16501. [Class 38 (iv)] [Also in Groups VIII, XIX, and XXVI] Speed.-Relates tc means for synchronizing the peripheral speeds of two adjacent rollers in ironing or other like roller machines. The roller 5 is directly driven from an electric motor 13 and the roller 6 is indirectly driven from the motor through variable-speed gear 14 of the infinitely variable type. Friction discs 42, 43 resting on the peripheries of the rollers operate a differential mechanism 35, 36, 40 through the flexible shafts 37, 38. When the peripheral speeds of the rollers are identical, no motion is imparted to the cage 39, but when the speeds diverge, the cage rotates and energizes electric circuits to operate the variable-speed gear automatically. A pilot motor 18 is normally inactive and is geared to a shaft 19 which actuates the variable-speed gear 14 and which carries three slip rings 22, 23, 24 and an arm 25 having a bifurcated end with a contact 27, Fig. 3, in each limb. The cage 39 of the differential is geared to a shaft 29 having a friction disc 28 fast thereon and an arm 31 having an overhanging portion 32 loose thereon. A shoe 33 carried by the overhanging portion is spring-pressed into engagement with the disc 28 and oppositely directed contacts 34 project from the overhanging portion between the limbs of the arm 25, neither contact normally touching either contact 27. One slip ring is connected to one contact 27, another ring to the other contact 27 and the third ring to both contacts 34, and the brushes of the rings are connected to a reversing switch for the motor 18. When the disc 28 rotates, due to movement of the cage 39, it moves the arm 31 through the friction shoe 33 and one set of contacts 27, 34 completes the circuit to the motor 18 to operate the variable-speed gear. The motor 18 continues to operate until the arm 25 moves sufficiently relatively to the arm 31 to break the circuit at the points 34, 27. Other forms of differential gear may be used, for example a screw may be rotated by one friction disc and a nut by the other. Differences of speed will be indicated by relative movement of the nut and screw and this movement may alter the variable-speed gear through a switch. In another form, the means for detecting variations in the peripheral speeds may operate devices to bring into operation thermionic or other relay mechanism. The devices may be of the photo-electric cell type, the detecting means being arranged to break the ray functioning in conjunction with the cell.
Patent GB-501881-A (GB)
Title: Improvements in high-pressure metal-vapour electric discharge lamps
IPC: H01J61/10
Filed: 1938-06-02
Abstract: 501,881. Discharge apparatus. BRITISH THOMSON-HOUSTON CO., Ltd., and GENERAL ELECTRIC CO., Ltd. June 2, 1938, No. 16543. Convention date, June 4, 1937. [Class 39 (i)] In a high-pressure lamp, one or more electric conductors are arranged within the outer jacket so that they are all on one side of the discharge, and extend in a substantially straight line between a lead through one end.of the jacket and a lead through the lamp at the other end of the jacket, so that during operation a magnetic field is established which reduces bowing of the arc. In one form, strips a, b, c are supported through mica on the upper surface of the envelope and are connected between leads 8 and 5 so that the discharge current therethrough establishes the required field. Strip a may carry more current than b or c. The conductors may be supported independently of, or may be arranged within, the envelope. Specifications 415,570, 444,400, [Group III], 445,648, and 452,688 are referred to.
Patent GB-130847-A (GB)
Title: Improvements relating to the Creels of Machines for Doubling and Twisting Yarns.
IPC: D01H1/18
Filed: 1918-10-11
Abstract: 130,847. Hall & Sons, R., and Hall, O. S. Oct. 11, 1918 Creel arrangements.-Creels for doubling and twisting machines comprise stands A in which creel pegs are supported at one end only and are arranged in double rows approximately at rightangles to the doubling spindles. The pegs are preferably set at an angle, but may be set hori-- zontally when less drag is desired.
Patent GB-1518903-A (GB)
Title: Process for trating molybdenite concentrates to produce a lubricant grade product
IPC: C10N50/08
Filed: 1976-04-23
Abstract: 1518903 Purification of molybdenum disulphide AMAX Inc 23 April 1976 [1 May 1975] 16618/76 Heading C1A Silica, silicates, pyrites and other gangue is removed from a molybdenite particulate feed by digesting the impure feed with an aqueous solution containing hydrofluoric acid in an amount at least stoichiometically equivalent to the SiO 2  and other constituents capable of reacting with the hydrofluoric acid, and also containing sulphuric acid to maintain a pH of below 2, until the major portion of the contaminants has been dissolved as soluble silicon-containing compounds and any lead present has been converted to lead sulphate; the digested material is separated from the acid solution and washed with water to remove retained acid before neutralizing and drying the washed feed material to obtain molybdenum disulphide powder of lubricant grade.
Patent GB-337434-A (GB)
Title: Improvements in the manufacture and production of hydrocarbons
IPC: C10G45/00
Filed: 1929-05-30
Abstract: 337,434. Johnson, J. Y., (I. G. Farbenindustrie Akt.-Ges.). May 30, 1929. Drawings to Specification. Hydrocarbons are converted into others containing double bonds in the molecule (including aromatic hydrocarbons) by alternately heating chambers provided with heat regenerators built therein to elevated temperatures not above 1100‹ C., and then passing the initial hydrocarbons therethrough. The chambers are heated during the heating period by means of gases containing sufficient oxygen to burn the carbon which has separated on the heat regenerating material during the reaction period. It is preferable to construct the heat regenerators of material known to catalyse the conversion of the hydrocarbons, such as firebricks impregnated with copper salts, or bricks made from fireclay and silicon. Other refractory materials which may be used are alloys of chromium and nickel, ferro-silicon, or silicon carbide, alone or mixed with one another. Suitable initial materials in the process are the gases obtained by the degasification of carbonaceous material, in particular bituminous coals, or by the gasification of carbonaceous material with steam and/or gases containing oxygen, and also the reaction gases from the destructive hydrogenation of coals, tars, mineral oils, and the like which contain in particular the homologues of methane. If it is desired to convert the initial materials into olefines, lower temperatures are employed than for the production of aromatic hydrocarbons. In an example, a tower containing firebrick chequer work is heated to a temperature of about 900‹ C. at the base and 300' C. at the top by means of hot gases of combustion obtained by burning producer gas with an oxygen-bearing gas at the base of the tower. When the tower has attained the desired temperature, the heating is discontinued and a gas containing 20.6 per cent of hydrocarbons CnH2n+2 is passed in from the top; the issuing gas contains 7.2 per cent of a mixture of unsaturated hydrocarbons and benzene. By washing the residual gases after separating the liquid hydrocarbons, anthracene, naphthalene and the like may be obtained. In a further example, a gas containing 1.6 per cent of hydrocarbons of formula CnH2n and 31.0 per cent of CnH2n+2 is passed through a similar apparatus previously heated to from 750‹ to 800‹ C. The residual gas contains 15.0 per cent of hydrocarbons CnH2n. A small amount of liquid aromatic hydrocarbons is also obtained. Specifications 301,775 and 319,340 are referred to.
Patent GB-258680-A (GB)
Title: Improvements in and relating to stands for barrels, drums and the like
IPC: B65G65/24
Filed: 1925-06-29
Abstract: 258,680. Higgins, H. R., and Charteris, A. S. June 29, 1925. Stands and tilters. - A folding tilting stand for barrels, drums &c. comprises a ring e pivotally carried by a stand comprising two U-shaped frames a, b pivoted together at c, d. The ring e is provided with a depending pivoted U-shaped stirrup m, one side of which is extending upwardly and bent over at its extremity o to hold the barrel &c. The frames a, b are connected by a removable tie rod h and the rear frame b provided with strut members k formed of a single length of strip metal. The rod h may be replaced by members pivoted to the sides of the frame a and secured bv hooks &c. to the frame b. In the construction shown the ring c is pivoted on the bolts which connect the frame a, b at c, d. In a modification the frames a, b are extended beyond the points c, d to form V- shaped bearings for trunnions provided on the ring e or the ends of the frames may be formed with grooves to receive the trunnions. The stand may be extended by additional supplementary frames in which the greater part of one leg of each frame a, b is omitted, a common pivot serving for adjacent rings e.
Patent GB-769020-A (GB)
Title: Improved apparatus for the dressing or concentration of coal, ore or other minerals
IPC: B03B5/42
Filed: 1954-06-08
Abstract: 769,020. Washing granular material. WESTFALIA DINNENDAHL GROPPEL AKT.-GES. June 8, 1954 [June 8, 1953], No. 16742/54. Class 82(2) Apparatus for concentrating minerals by sink-and-float separation comprises a rotating drum tapering conically in the direction of floats discharge and having scoops for the removal of both sunk and floating products, the scoops discharging into separate shoots and plates being provided to isolate the scoops for removing sunk products from the remainder of the surface of the liquid. As shown, the drum 1 has scoops 5 for removing floating material from the narrower diameter end of the drum and depositing the material in a shoot 8, and scoops 4 for removing sunk material and depositing it in a shoot 7. Plates 9 prevent floating material from being collected by the scoops 4. Raw material is fed in through shoot 6 and the drum is rotated on rollers 2 by a motor 3.
Patent GB-559290-A (GB)
Title: Frequency modulation receiver
IPC: H03G11/06
Filed: 1942-11-26
Abstract: 559,290. Frequency modulation. MARCONI'S WIRELESS TELEGRAPH CO., Ltd. Nov. 26, 1942, No. 16807. Convention date, Nov. 27, 1941. [Class 40 (v)] In a frequency modulation receiver, the load resistances of the balanced discriminator rectifiers are connected in the grid circuits of amplifying valves which have their anode output circuits associated in push-pull relation ; and the grid circuits are arranged to give an approximately logarithmic relation between input volts and anode current. The Circuit serves to eliminate amplitude modulation effects without using a limiter. As shown, the discriminator is fed from the I.F. stage 5 and includes off-tune circuits 7, 8 connected to rectifiers 15, 16 and load resistances 13, 14, the junction of which is earthed and the positive outer ends connected to the grids of the respective amplifiers 22, 23. The anodes are associated in push-pull relation with a subsequent AF stage, the HT current being fed to a centre tapping on the transformer 25, or an indirect feed may be employed with capacities inserted between the anodes and the transformer. Automatic volume control is provided by connecting the rectifier cathodes through resistances 17, 18, smoothing condenser 19, polarity-reversing amplifier 19' to the grids of the early stages of the set. A non-linear relationship between input voltage and anode current in the valves 22, 23 is ensured by series resistances 20, 21 which owing to the flow of grid current absorb part of the input voltage. In a modification shown in Fig. 3, the grids of the AF amplifiers 48, 49 are connected to earth through triode valves 22, 23 which cause a further drop of voltage in the grid resistors 44, 45. The grids of the triodes 22, 23 are connected through resistances 20, 21 to the ends of the rectifier load resistances 13, 14.
Patent GB-561778-A (GB)
Title: Improvements in milking apparatus
IPC: A01J5/01
Filed: 1942-11-26
Abstract: 561,778. Cow - milkers. SIMPLEX DAIRY EQUIPMENT CO., Ltd., and LOVE, T. E. Nov. 26, 1942, No. 16808. [Class 84] The cover 3 of a milk pail 4 is provided with a connection 5 for a vacuum pipe line 1, a pulsator 6 for controlling the operation of a teat cup assembly at the ends of flexible tubes 7, 8, connected respectively to a nipple 71 extending through the cover and the pulsator 6, and a connection 9 for a milk pipe line 2, the connection 9 being adapted to he sealed off as by a rubber cap so that the pail can be used for collecting the milk in apparatus not provided with a milk pipe line 2. The milk may be weighed by hooking the pail on to a weighing machine 11, stop cocks 12, 13 being provided in the lines 1, 2. A sight glass 14 may be provided.
Patent GB-145268-A (GB)
Title: Improvements in methods of and apparatus for raising sunken ships
IPC: B63C7/06
Filed: 1919-07-04
Abstract: 145,268. Helder, J. R.., (Wynbergh, P. M.). July 4, 1919. Lifting-dogs and the like.-Apparatus for raising sunken ships is constructed as shown in Fig. 1, and is lowered by the lines d, part of the weight being taken by the buoys E. Cables e limit the opening of the jaws A, and stops C limit the closing when the jaws have engaged the sides of the ship. The jaws are closed and the wreck raised by means of submergible pontoons F placed in position under the arms B and filled with air. A modification for use where the superstructure. x on the hull X will not admit the use of the double arms is shown in Fig. 3.
Patent GB-1114884-A (GB)
Title: Purification of refractory ceramic raw materials
Inventor: GOLDBLATT NICHOLAS ZALMON
IPC: C04B33/10
Filed: 1966-04-18
Abstract: Refractory ceramic raw material is purified by contacting it in comminuted form at an elevated temperature with a mixture of a hydrogen halide and a gaseous reducing agent to convert at least part of the metallic impurities present in the material into a volatile form which is vaporized, and separating the vapours from the refractory material.  Suitable gaseous reducing agents include carbon monoxide, town gas, water gas, producer gas and hydrogen. Carbon monoxide is preferred and may be used alone or in admixture with other gases.  The preferred hydrogen halide is hydrogen chloride and the ceramic raw material is desirably treated with a mixture of hydrogen chloride and carbon monoxide in a volume ratio not less than 3 to 1.  Quartz may be purified by this process in which the contacting is carried out at a temperature from 1050 DEG  to 1200 DEG C., and feldspar at a temperature from 1000 DEG  to 1100 DEG  C. The particle size of the raw material is preferably in the range from 18 to 300 mesh B.S., and they are preferably dried beforehand to a free moisture content of about 0.2% or less. The comminuted raw material is preferably in the form of a fluidized bed.  A static bed may also be used.  The metal impurities include iron, sodium and potassium.
Patent GB-864023-A (GB)
Title: Rotary slide valve control for multi-cylinder piston machines
IPC: F03C1/36
Filed: 1957-05-28
Abstract: 864,023. Rotary valve control for multicylinder motors (or pumps). WIGGERMANN, G., and REINERS, W. May 28, 1957 [June 5, 1956], No. 16889/57. Class 69 (2). [Also in Group XXVIII] In order to balance the contact pressure conditions on the surfaces of contact of the stationary distributing valve and the rotating cylinder block 1 of a multi-cylinder motor (or pump), the mouths of the cylinder openings 2 at the control surface 4 are widened circumferentially, so that they are separated from each other only by a narrow sealing bridge 6 and the sum of the areas of all the bridges 6 is not greater than one fifth that of the total surface of revolution swept out by these mouths. The widened areas 5 are shallow and are rounded off at 18 into the cylinder to prevent cavitation. In a modification, the shallow portions are on one side only of the cylinder openings in the direction of rotation of the cylinder block relative to the valve. The invention is equally applicable to motors (or pumps), of the radial cylinder type. The valve control surfaces may alternatively be cylindrical conical or spherical.