Lockheed brakes were used on Ford cars & trucks from the mid-1930's or before until 1948. Chrysler Corp. cars used them until sometime in the mid-50's. They had two equal-length shoes, and two hex nut adjusters in the backing plates, attached to a snail shell-shaped adjuusting cam. Each brake shoe gets adjusted individually, like a Huck brake. Most Lockheed brakes are not servo type brakes like Bendix, but some of them had a limited amount of self-centering ability from a slotted anchor pin at the bottom of each shoe. Some of the Chrysler Corp. brakes had different-sized wheel cylinder bores for the front and rear shoes at each wheel. Bendix-type brakes usually have better stopping ability than Lockheed, due to the servo action of the Bendix design.
Jerry

"It is better to be silent and be thought a fool than to speak and eliminate all doubt!" - Abraham Lincoln
Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt!
There is nothing noble in being superior to your fellow man; true nobility is being superior to your former self. - Ernest Hemingway
Love your enemies and drive 'em nuts!