Usage examples (9)

• Du Toit: "Was it safe not to put the aeroplane sprag and the farm gate safety devices back in place before knocking off?"
• The 'Silesian' method includes a "soldier sprag" brace wedged between the props underneath the roof bar to reinforce the props against lateral compressive forces.
• For all that, it's a sheer impossibility that you should guess who put a sprag in the wheel of Hilton's chariot.
• But the epitaphs were trim, and sprag, and potent, and pleased the survivors of Thames-Ditton above the old Mumpsimus of 'Afflictions