Abstract: A toothed transmission belt adaptable for use with drive transmission having a series of teeth, where the curve of each tooth is based on Schiele's Anti-Friction Formula which describes a tractrix curve.

Abstract: A bearing retainer and seal is described which is snapped into locking engagement on a bearing mounted in a pillow block. The retainer includes an interior circular locking flange which snaps into locking grooves on the outer surfaces of the bearings whereby a pair of the retainers cooperate to lock the bearing in position in a pillow block or other bearing support. The retainer shaft opeining has an integral wiping seal at its edge both to seal the bearing for excluding foreign matter and also for retaining lubrication within the bearing.

Abstract: A bearing retainer and seal is described which is snapped into locking engagement on a bearing mounted in a pillow block. The retainer includes an interior circular locking flange which snaps into locking grooves on the outer surfaces of the bearings whereby a pair of the retainers cooperate to lock the bearing in positon in a pillow block or other bearing support. The retainer shaft opening has an integral wiping seal at its edge both of seal the bearing for excluding foreign matter and also for retaining lubrication within the bearing.

Abstract: This invention relates to couplings such as universal joints and the like for coupling the ends of two shafts together and, in particular, in situations where the two shafts may be in either lateral, longitudinal or angular misalignment. The coupling comprises flexible finger means which connect in sliding relationship to finger receiving means on hubs adapted to be connected to the shafts.

Abstract: A belt is described for use as an emergency replacement for a regular drive or timing belt. The belt comprises an elongated flexible member which has an integral ratchet type connecting means provided on its opposite ends. The flexible member is cut to form a loop of the desired size and the opposite ends are then connected using the ratchet connecting means without requiring any special additional connecting members or tools. The belt is useful, for example, in automobiles as an emergency replacement for the conventional fan belt or other engine belts where a belt fails in use and where the replacement belt permits the motorist to drive a sufficient distance to reach a garage for a regular belt replacement.

Abstract: A toothed transmission chain or belt is described for use in coupling spaced sprockets or gears. The chain is formed of molded polyurethane or other plastic having sprocket engaging teeth molded onto a supporting unitary molded backing. The molded portion is reinforced by one or more metal cables which are embedded in the molded plastic portion. An improved engagement with the sprockets is provided for by providing lateral slots in the chain teeth thereby giving them variable width. Additionally, the chain may be furnished or originally formed in indeterminate lengths and then fashioned into an endless chain by exposing and splicing together the ends of the steel reinforcing cables.

Abstract: An improved lock washer is described for locking nuts or bolts into their fastened positions. A molded plastic washer has a series of integral dimples or lock projections extending radially outwardly and downwardly from one of the washer contact surfaces. These integral projections are turned circumferentially during the tightening of the nut or bolt and the circumferential positioning of the dimples resists an unscrewing movement of the nuts or bolts.