997,535. Clamp fastenings. GARRETT CORPORATION. July 5, 1961, No. 24323/61. Heading E2B. [Also in Division H2] Two casing parts of a dynamo-electric machine are secured together by each having split, resilient rings 27 lying in grooves, and related rings 29 overlying these rings and drawn together by bolts 32<SP>1</SP>. The parts are aligned by ring 34. Specifications 786,541, 880,711 and 997,536 are referred to.