The brakes on the Michigan car were supplied by the Royal Equipment Company of Bridgeport, Connecticut. The specific type of brake is referred to as the Duplex Model B.
These are referred to and advertised as “duplex” because these external contracting brakes worked when the car was moving forward or in REVERSE. Many brakes of that era did NOT work in reverse. Indeed, several serious injuries to drivers and passengers of antique vehicles in recent years have been attributed to failure of the cars to stop while rolling backwards on hills.
Contemporary advertising made much of this duplex braking feature and the use of Raybestos brand lining on their brakes. Raybestos® brand lining was another product of the Royal Equipment Company. It utilized a woven asbestos fabric strengthened by copper fibers. Copper or brass fibers in asbestos free brake lining material is still used today in non-disk brake applications.
The Royal Equipment Company Duplex brakes explains the brake system for our external contracting brakes that are engaged by pressing the brake pedal, but another company is probably responsible for our internal expanding brakes. We believe that company is the Sheldon Axle Company. https://wp.me/P45zSY-ho
Evidence of this can be found in the description of the brakes included with the model No. 201-D, Floating Type axle appearing in a brochure about this so called “Pleasure Axle” which differentiates it from the axles it made for trucks. Which presumably were less pleasurable.
A page from the brochure describing the expanding brakes is attached below.
The brakes that came with the “Pleasure Axle” were operated with the hand lever or emergency brake lever.