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William Stewart
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Individual
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18,761. Stewart, W. Sept. 20. Stuffing - boxes.- Relates to metallic ball stuffing - box packing. In the form shown in Fig. 2, a cylindrical sleeve A is inserted in the stuffing-box along with divided or segmental rings F and intervening metallic balls D. In a modification, the rings may be inserted only at the inner and outer ends, and a constant pressure exerted by springs inserted between the outer ring and the gland.