Abstract: The present device, as a function of the actuators (i1, i2), creates a deployable and removable barrier of durable and preferably transparent material or arrangement between one or more work stations (6) close to a loom (1) of exceptional width, and moving parts in the machine. The material may be composed of at least one plastic sheeting (10), a matting and/or netting, which can be fed into and out of a storage arrangement (12, 13) in the machine. At least one output feed and inlet feed member (16) in the form of an electric motor, which can be activated by means of the said actuators on the barrier output and input feeds, is assigned to the plastic sheeting, matting or netting.