The phrase "a device to destroy" is correct and usable in written English.
It can be used when referring to an object or mechanism designed for the purpose of destruction.
Example: "The military developed a device to destroy enemy installations without causing civilian casualties."
Alternatives: "an instrument for annihilation" or "a tool for demolition".
In late April, the military leadership, headed by General Pace, achieved a major victory when the White House dropped its insistence that the plan for a bombing campaign include the possible use of a nuclear device to destroy Iran's uranium-enrichment plant at Natanz, nearly two hundred miles south of Tehran.
The two form an alliance and use Scar's self-destruct device to destroy the pyramid and the remaining Aliens.
Walter surmises that Walternate wants to engage the device to destroy the prime universe in hopes of healing the parallel universe damaged by his crossing in 1985.
The men had planned to use two homemade explosive devices to destroy a bridge on Route 82 that crosses from Brecksville to Sagamore Hills through Cuyahoga Valley National Park, according to the federal authorities.
In 1842 he used one of the devices to destroy a moving vessel to the satisfaction of the United States Navy and President John Tyler.
Daniel Hume was on foot patrol securing ground for local people to vote in the forthcoming Afghan presidential election, his father proudly tells me, when an improvised explosive device set to destroy a nearby armoured vehicle exploded, killing Daniel almost instantly and severely injuring his comrade Sergeant John Bolam, who was walking alongside him.
The Pentagon learns that the blasts will set off a secret Soviet "doomsday device" rigged to destroy the earth.
The device, enough to destroy a pickup truck or tear apart several men, was buried beneath him in the dusty soil.
The cruise missile courses delivered by RAF "weaponeers" relate to the deployment of Storm Shadow, an air-launched explosive device designed to destroy buried enemy command centres.
Designed for industries such as finance, government/military and research and large corporations with sensitive information, the $249 device uses a laser beam to destroy all data stored on a disc and works with eight types of disc formats in both 12cm and 8cm sizes.
