Pistol apparatus for driving tacks, nails and the like into material
AssigneeIntertack Anstalt
InventorKnut M. A. Livio
Life of this patent
Estimating the term…
Abstract
A piston for driving tacks comprises a magazine that holds a series of tacks preferably interconnected in a strip by individual casings that are detachably interconnected in side-by-side relation in the strip. As the strip advances through the magazine, the casings each containing an individual tack, are severed from the strip by a reciprocating driver which grips and advances the tack and casing and drives the tack, and then retracts to the initial position where the advancing strip forces the empty casing from the driver in the direction of strip advance. The driver has a projection thereon that contacts and ejects this empty casing upon the next advance of the driver. The gun is recocked by pneumatic recoil.
Claims7
Pistol apparatus for driving in tacks, comprising in combination a magazine adapted to receive at least one set of tacks arranged with their stems parallel and attached to one another indirectly by means of a strip of detachably interconnected cylindrical casings each holding a tack, the pistol comprising a barrel having a bore which has the same internal diameter as the external diameter of the casings, plunger means reciprocable in the barrel means to apply compressed air to the plunger means to reciprocate the plunger means relative to the barrel to detach a casing and its tack from the set and to cause both to advance through the bore and to detach the tack from the casing and to drive in the stem of the tack into material to be tacked, means on the plunger means to retract the empty casing to a position in line with said strip, means to feed the strip into the path of said plunger means whereby the advancing strip pushes said empty casing to a position out of alignment with said barrel, and a protuberance on the plunger means to contact and expel the empty casing of the tack previously driven upon advance of the plunger means to drive the next tack.
Dependencies are inferred from the claim text.