Brake locking and release system

Claim 1

A brake system for a wheeled unit, which comprises in combination: a. a bracket type support means to hold and support said brake assembly; b. a pivoted actuating lever arm for applying a brake member; c. a central pivot connection for said lever arm to said support means and a pivoting connection between a portion of said arm and a connecting link member, whereby said link member is moved responsive to any movement of said lever arm; d. said link member positioned in a generally end-to-end relationship with said lever arm and additionally pivotally linked at its opposing end to one end of a pivoted rocker member; e. said rocker member fixedly pivoted at a central point to said support means and having a slidable and pivotable pin connection to a movable brake member at an end opposite the link connection to thereby provide a back and fOrth movement to such brake member; f. guide means for said brake member and spring means between said support means and an end portion of said brake member to biasly oppose the brake applying movement of the assembly and to assist in the release of the brake member; g. a pivoted release lever arm with a fixed pivot connection at one end thereof to said support means; h. last said lever arm being positioned in a close side-by-side relationship with first said lever arm and the linkage from the latter to said rocker member; and i. a projection member from said release lever arm positioned to engage a portion of said actuating lever arm, whereby the latter can be moved and pivoted to in turn pull on said link member and thereby tip said rocker member and release the brake member.