What is a contrivance for fastening the wheel of a vehicle, to prevent it from turning in going down a hill. To put a spoke in one's wheel, to thwart or obstruct one in the execution of some design called?

spoke — A contrivance for fastening the wheel of a vehicle, to prevent it from turning in going down a hill. To put a spoke in one's wheel, to thwart or obstruct one in the execution of some design. (Webster's 1913.)

Sources