Abstract: A gear wheel is provided with a split damping ring on each side having a close fit with the inside of the rim of the gear wheel. The rings are anchored at points remote from their split ends to the web of the wheel. A tapered bolt and nut assembly cooperate to wedge the ringsagainst the gear rim. Elastomer type ring washers associated with such bolt and nut assembly are pinched tightly thereby to the gear rim.

Abstract: An adjustable dwell cyclic timing device. An element having a timing surface with a radius or other measurement varying from a minimum value to a maximum value and back to a minimum value, and preferably having generally a heart shape when the element is in the form of a disc, is rotated in synchronism with a timing cycle. A sensor is positioned to sense the presence and absence of the timing surface in a region between the minimum and maximum radii or other measurements only when the element is rotated through a predetermined angular segment for generating a cyclic timing signal during a preselected time segment in each cycle. The sensor position is adjustable for changing the preselected segment of the timing signal in each cycle to provide a desired starting point and dwell for the generated timing signal.

Abstract: Disclosed is a fluidic sensor of the proximity type with improved sensing range and response. The sensor generally comprises an inner and outer tubes with an annular passageway therebetween. Air or the like under a low pressure (e.g. 4 pounds per square inch) is introduced in the annular passageway. Presence of an article near the discharge end of the device causes the air to be diverted down the interior of the inner tube and such a "signal" can be used to initiate or terminate control actions. The inner tube in the present invention has a novel exterior configuration which provides increased sensitivity which allows higher recovery (signal/supply) ratios and/or sensing at greater distances than possible with the prior art.