Proximity switch mounting plate

Claim 1

A mounting plate mounted to a proximity switch which senses the position of a piston within a fluid operated, expansible chamber cylinder, said proximity switch being provided with a retaining channel formed on a side thereof and engaged with a tie-rod extending between heads secured to each end of the cylinder and a plurality of externally threaded first fastening devices engageable with a plurality of threaded bores formed therein and extending through the rear adjusting surface of the retaining channel, wherein the proximity switch is positioned with respect to the cylinder by engaging the fastening devices with the tie-rod in the channel, the mounting plate comprising: a flat portion having two tabs formed adjacent opposite edges thereof, said tabs abutting the end of the rear adjusting surface of the retaining channel; an arcuate portion adjoining the flat portion having means forming an aperture therein; a second fastening device threaded through the aperture, wherein the acruate portion is aligned coaxially with respect to and spaced apart from the surface of the cylinder and the proximity switch is positioned with respect to the cylinder by engagement of the tie-rod in the channel, the second fastening device abuts the surface of the cylinder thereby preventing dislodgement of the proximity switch with respect to the cylinder.