Peening Apparatus

Author:  Fowler, B. F.
Source:  US Patent 2,489,877
Doc ID:  1949001
Year of Publication:  1949
Abstract:  
The present invention relates to an improvement in peening apparatus of the type in which shot is caused to be projected upon metal articles to remove fissures or other imperfections therein and thereby materially increase the mechanical strength of the article. An object of this invention is to provide peening apparatus having nozzle means through which shot is adapted to be discharged comprising work supporting means of a character for subjecting substantially all portions of an article supported, thereon to the shot discharged through the nozzle means. A further object is to provide peening apparatus having nozzle means through which shot is adapted to be discharged comprising work supporting means for supporting an article to be peened, drive means for driving the work supporting means, and means under the control of the driving means for controlling the delivery of shot and air under pressure to the nozzle means for discharge of the shot through the nozzle means upon the article to be peened. A further object is to provide an apparatus as last aforesaid having means for a predetermined length of time providing a cycle of operation for the apparatus in the peening of article therewith.