VALVING HEAD Russian patent published in 1994 - IPC

FIELD: valving. SUBSTANCE: valving member which engages with inclined groove is received in a case. The groove is made in a driving member. Two symmetrical opposite projections are provided on the groove walls. Two parallel inclined chamferings which are answered to the projections of the groove are provided at the end of the rod. The case is provided with an axle secured parallel and eccentrically to the rod. The driving member is made of a flywheel and mounted on the axle for rotation. The case is provided with through lateral opening wherein the driving member made of a slide is received for reciprocation. One side of the groove is provided with a hole for entering the rod. There is a stop from the other side. Axial slot which separates the rod into two flexible cantilevered parts which is fitted within the groove with interference is provided at the end of the rod. EFFECT: improved design. 5 cl, 8 dwg