the darwin-coxe machine
NSFW Tumblr
find the darwin-coxe machine on porn pin board
the darwin-coxe machine clips
The Darwin-Coxe Machine was used to swing the insane until they were quiet and by “increasing the velocity of the swing, the motion be[ing] suddenly reversed every six or eight minutes, pausing occasionally, and stopping its circulation suddenly:
![The Darwin-Coxe Machine was used to swing the insane until they were quiet and by “increasing the velocity of the swing, the motion be[ing] suddenly reversed every six or eight minutes, pausing occasionally, and stopping its circulation suddenly:](https://64.media.tumblr.com/tumblr_m6fc58IKQ31r34amfo1_250.jpg)