This utilizes a long bar attached to an end knob. The bar is angled. The sac should be oversized to be impressed a bit by the bar at rest. Twisting the knob will entangle or cause twisting of the sac.
![](https://vintagependoctor.com/wp-content/uploads/2020/03/leverless-patent-snip.jpg)
This utilizes a long bar attached to an end knob. The bar is angled. The sac should be oversized to be impressed a bit by the bar at rest. Twisting the knob will entangle or cause twisting of the sac.