1930 J.W. Campbell, Jr. Black Star Passes Amazing Stories Quarterly (Fall) № 519/2: Earth and Venus were each equipped with gigantic ray projectors, mighty ray guns that could destroy anything, even a body as large as the moon, at a distance of ten thousand miles.
1934 E.E. Smith Triplanetary Amazing Stories (Jan.) № 24/2: Cositgan had seen that there was a third enemy, [...] a pirate who was even then training a ray projector upon him.
1953 E.F. Russell Somewhere Voice Other Worlds (Jan.) № 11/2: No face masks. No oxygen cylinders. No portable ray‐projectors.
1961 J. Siegel Shame of Bizarro Family! Tales of Bizarro World (2000) № 18: Years ago, in Smallville, a scientist accidentally shone an imperfect duplicator ray on me, creating an unliving bizarre imitation of me instants before his ray‐projector exploded.