Abstract: Propelling pencil for pins, whether colored or not, which consists mainly of the combination of an elongated casing with an axial bore for housing a pencil pin which is provided at the top with a screw thread part, a screw head with an axial bore for passing the pin and of which the tailpiece is provided with a screw thread part which can be screwed into and moved in the screw thread part of the axial bore of the casing, the tail-piece being provided with several longitudinal grooves which run over a distance of the end of the tailpiece, and means being provided for gradually squeezing the middle part of the tail-piece in which the grooves are provided, between the axial bore of the casing and the tailpiece of the screw head.

Abstract: A ballpoint feather pen is provided and consists of a feather to be gripped by a hand and a ballpoint pen dispenser carried in the bottom of the feather, so that the ballpoint pen dispenser within the feather can be used for writing.

Abstract: This invention is to a writing tool such as mechanical pencil or a ballpoint pen in which a writing shaft having a head member is inserted in an outer sleeve in such a manner that the head member projects from the outer sleeve. A stair or step and a spiral groove are providd on the forward inner surface and the rearward inner surface of a tubular cap, respectively with an inside diameter of the rear part of the spiral groove being larger. A bearing part is brought into contact with a lead tank provided inside a forward art of the tubular part so that the forward part of the outer sleeve is movable in the axial direction and is locked in the turning direction against a rearward inner surface of the outer sleeve. The rearward part of the tubular body is provided with a slit, holding pieces of a stick-shaped object holder slidably inserted in said slit. A stick-shaped object is held by the holding pieces, and the projection is provided on each holder engaged with the spiral groove of the tubular cap.