. Journal . the rollers which carry the upper end of thedrum in a supporting ring resembling a Cardan heavier material is carried upwards against thestream of water and is discharged from the upper end ofthe drum and the lighter portion is washed over the lowerend of the helix.—W. H. C. Filters13U Automatic ?Jan. 19, 1909. A. James, London. Eng. Pat. The claim is for improvements in the filters describedin Eng. Pat, 11,623 of 1906 (this J., 1906 ,989) and consistsin arranging the rotating filter frames so that they arecompletely immersed in tho pulp tank and that thevacuum is applied
. Journal . the rollers which carry the upper end of thedrum in a supporting ring resembling a Cardan heavier material is carried upwards against thestream of water and is discharged from the upper end ofthe drum and the lighter portion is washed over the lowerend of the helix.—W. H. C. Filters13U Automatic ?Jan. 19, 1909. A. James, London. Eng. Pat. The claim is for improvements in the filters describedin Eng. Pat, 11,623 of 1906 (this J., 1906 ,989) and consistsin arranging the rotating filter frames so that they arecompletely immersed in tho pulp tank and that thevacuum is applied to both sides of tho frame, with theresult that filtration takes place on both faces simul-taneously. Further, in order to facihtate the dischargeof the cake, each frame is rotated during the introductionof the compressed air, the cake falling off from eachfiltering surface when it is facing downwards.— Furnaces. Bell Bros., Ltd., and W. L. Johnson, Middles-brough. Eng. Pat. 4123, Feb. 19, The fuel is fed by the plunger, «, from the hopper, r,into the upper end of the inclined conical furnace, formedof an outer metal casing, a, lined with refractory material,6, and provided with tapering projections, c, which Uftup tlie fuel and drop it through the fire. The furnaceis supported on rollers, o, o, and is rotated by the gear,m, )!. Tho volatile portion of the fuel is burned off intho upper part of the furnace and the coked residue andashes pass over the circular grate, /, through which anyfine ash falls, into the combustion chamber, g, wherethe coke is completely burned on the , by the aidof forced draught introduced through k. The ashes areremoved through the doors, I, and tho flame and hot gasespass tlirough the fixed flue, e, into the tubes of the furnace is designed to burn shale from coal washingplants and spoil heaps and other low-class fuels con-taining a high percentage of ash, which cannot be burnedon ordinary grates.—W. H. C. Barrels
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Keywords: ., bookcentury1800, bookdecade1880, booksubjectchemist, bookyear1882
