Tiltable box scraper for three-point attachment to a tractor

Claim 1

An improved tiltable box scraper for attaching to a standard three-point hitch at the rear of a farm tractor or the like, the scraper comprising: a scraper housing having a moldboard with a cutting blade attached at an angle to the bottom of the moldboard and a pair of vertical end plates, the opposite ends of the moldboard attached to the rear of the end plates; a lateral support brace, parallel to the moldboard, the opposite ends of the support brace attached to the front of end plates; a pipe sleeve, one end of the sleeve attached to and centered on the support brace, the other end attached to and centered on the moldboard; a rectangular shaped housing support, the support having a horizontal lower pivot bar, a horizontal upper bar, a first vertical bar attached to one end of the upper bar and one end of the pivot bar and a second vertical bar attached to the other end of the upper bar and the other end of the pivot bar, the pivot bar slidably received through the pipe sleeve; pivot means attached at one end to the support brace and the other end attached to the upper bar for pivoting the housing on the pivot bar; and attachment means secured to the first vertical bar for releasably attaching the scraper to the three-point hitch.