An elderly Alberta farmer has been rescued after spending a shivering 22 hours stuck, upside down, in his combine.

Morinville, Alta.

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Ray Como, 83, was working on the machine on his farm near Morinville, north of Edmonton, on Friday afternoon when he fell and got wedged head-first between the combine's grain tank and the motor.

He wasn't discovered until his son-in-law went to check on him Saturday morning.

Ron Cust, with the Morinville Fire Department, said Como was still awake when firefighters arrived.

"The farmer — surprisingly enough, he's 83 years old — but he was conscious and coherent … It appeared he experienced some frostbite," he said.

"His head was basically downward, and his arms and legs were entangled in around the parts of the combine. There are some ... scrapes and those kinds of things to his arm and legs."

Cust said it took crews more than an hour to free Como.

He was flown to University of Alberta Hospital in Edmonton by helicopter.

With files from The Canadian Press