4

Technologies called "suspensions" support the comfort of passengers in wheeled vehicles. In the era of draft animals, carriage suspensions apparently started with hanging the passenger compartment by iron chains; then replacing the chains with less noisy leather straps; then mounting the same on an iron elliptical leaf spring; then stacking several leaf springs; and today's standard for passenger vehicles is coil springs.

When were these advances developed and popularized?

  • That's an interesting question. I'm not sure human comfort was the goal in the era of draft animals, as humans were rarely passengers. Maybe the survival of pottery was also a factor. – Carmi Mar 21 '17 at 7:19
  • 1
    "Era of draft animals" ended barely 100 years ago. Many important people (kings &c) had to travel by horse-drawn carriage and their comfort was important. Wiki is a good start. – sds Mar 21 '17 at 13:33
  • 1
    Off-topic: Am I the only one who has been left wondering how is this related to Spanish California? :-D – SJuan76 Mar 21 '17 at 15:19
3

The first suspension system has been designed for the light chariots of Ramses around the year of 1296 B.C.

hanging the passenger compartment by iron chains or leather straps

It is likely that Roman carriages (1 BC) employed some form of suspension on chains or leather straps, as indicated by carriage parts found in excavations.

iron elliptical leaf spring

Leaf springs have been around since the early Egyptians. Ancient military engineers used leaf springs in the form of bows to power their siege engines, with little success at first. The use of leaf springs in catapults was later refined and made to work years later. Springs were not only made of metal, a sturdy tree branch could be used as a spring, such as with a bow. Horse-drawn carriages and the Ford Model T used this system, and it is still used today in larger vehicles, mainly mounted in the rear suspension

stacking several leaf springs

The venerable leaf spring, which some manufacturers still use in rear suspensions today, was invented by Obadiah Elliot of London in 1804. He simply piled one steel plate on top of another, pinned them together and shackled each end to a carriage.

coil springs

Coil springs first appeared on a production vehicle in 1906 by Alanson Brush in the Brush Runabout made by the Brush Motor Company. Today, coil springs are used in most cars.

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.