Print/View PDF. Hairline fractures are uncommonly diagnosed in small animal patients, but may occur more frequently than suspected. These fractures may cause lameness or pain on palpation. For the purposes of this article, a hairline fracture is defined as any disruption of normal bone integrity that is not clinically obvious on radiographs.
Now the drive-in theater has fallen on hard times. According to The United Drive-In Theatre Owners Association, there are currently only 366 drive-ins in the United States with a total of 606 screens. The states with the most theaters are Pennsylvania (33) and Ohio (31). Alaska, Delaware, Hawaii and Louisiana sadly have no drive-ins. Many other states are in a precarious position with only one or two.
Most combination locks use a wheel pack; a set of wheels that work together to 'know' the combination. All wheel packs are all designed around the same principle. The typical combination lock has a combination dial that is attached to a spindle. Inside the lock, the spindle runs through several wheels and a drive cam. The number of wheels in a wheel pack is determined by how many numbers are in the combination - one wheel for each number. When you turn the dial, the spindle turns the drive cam. Attached to the drive cam is a drive pin.