(under subclass 117) Apparatus wherein the lubricant is provided within the space around a metal bar interconnecting the overlapped ends of a pair of an endless chain links.
SEE OR SEARCH CLASS
184, Lubrication,
105.3, for a nipple or fitting type lubrication. (e.g., grease fitting)
277, Seal for a Joint or Juncture, for a generic sealing means or process, cross-reference art collection 907 for a passageway in a rod or shaft.
384, Bearings,
138, for a unitary bearing or seal; subclass 282 for a special sleeve or liner with a bearing surface insert 403, Joints and Connections,
152, for articulated members with a pivoted pin.
474, Endless Belt Power Transmission Systems or Components,
91, for a structure facilitating lubrication of a belt, pulley, or guide roll. [figure] [caption]A - Link pin; B - Bushing; C - Link; D - Link opening; for bushing; E - Link outer front; F - Opening to receive link pin end; G - Annular recess; H, J - Sleeve with coils to distribute lubricant; K - Grease fitting; L - Lubricant passage
