Improved cartridge-actuated impact hand tool includes a common power head and four attachments to punch holes, drive forced entry fasteners, hammer, and shear. The attachments are self-contained and easily fitted to the power head assembly

Hodil, E. R.

English

NASA Technical Reports Server

October 1968	 Brief 68-10371 
NASA TECH BRIEF 
NASA Tech Briefs are issued to summarize specific innovations derived from the U.S. space program, 
to encourage their commercial application. Copies are available to the public at 15 cents each 
from the Clearinghouse for Federal Scientific and Technical Information, Springfield, Virginia 22151. 
Versatile Impact Hand Tool 
An improved cartridge-actuated impact hand tool, 
which has been developed, includes a common power 
head and four attachments to drive forced entry 
fasteners, punch holes, hammer, and shear. The 
attachments are self-contained and are easily fitted, 
as needed, to the power head assembly. 
Among the significant features of the tool are: 
(I) a cartridge magazine which holds a number of 
cartridges in a belt mounted in a track which in-
cludes a detent to align a cartridge with the firing 
pin; (2) a cartridge feed, which operates upon move-
ment of the barrel to rotate the belt of cartridges; (3) 
cockin g and firing mechanism, which includes a
dual safety arrangement; (4) a mechanism which 
permits rapid changing of the various attachments; 
(5) a simple means of adjusting power; and (6) an 
1-clip holder in the fastener attachment which holds 
an I-clip to the tool and after firing holds the tool 
against the work surface to eliminate recoil. 
Note: 
Complete details may be obtained from: 
Technology Utilization Officer 
Marshall Space Flight Center 
Huntsville, Alabama 35812 
Reference: 1368-10371
untied nniC riejil 
This document was prepared under the sponsorship of the National 
Aeronautics and Space Administration. Neither the United States 
Government nor any person acting on behalf of the United States
Government assumes any liability resulting from the use of the 
information contained in this document, or warrants that such use 
will be free from privately owned rights.
https://ntrs.nasa.gov/search.jsp?R=19680000371 2020-03-12T05:52:35+00:00Z
Patent status: 
Inquiries about obtaining rights for the commercial 
use of this invention may be made to NASA, Code 
GP, Washington, D.C. 20546.
Source: E. R. Hodil
of Olin Winchester-Western Division 
under contract to 
Marshall Space Flight Center

(MFS-201 40) 
Brief.
 68-10371	 Category 05


Versatile impact hand tool

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