Definitions:
restrictions or impediments to freedom of action

a three-layered dragnet, designed so that a fish entering through one of the large-meshed outer sections will push part of the finer-meshed central section through the large meshes on the further side, forming a pocket in which the fish is trapped.

an instrument consisting of a board with two grooves intersecting at right angles, in which the two ends of a beam compass can slide to draw an ellipse.

a hook in a fireplace for a kettle.

deprive of freedom of action