Abstract: A typewriter ribbon feed device having a transport lever provided at one end with a transport pawl and at the other end with a fork guide engaged by a pin fixed to a driving lever while at one end of the driving lever a suspension hole for a traction bar and a restoring spring is provided, the bearing points of a transport lever, a transport wheel axis and a driving lever being positioned on a straight line.
Abstract: A matrix printing head of the kind having a matrix of multiple elements which are operated sequentially to print characters. The head comprising a plurality of elongated, axially slidable printing elements which extend through each of a plurality of electro-magnetically operated driving members which are operable to cause sliding movement of the printing elements.