The diamond drill. (Crystal Falls, Iron County, Mich.) 1887-1996, 1891-09-26

built at his works IN Germany port.
able armored carriage for rapld-frin3
guns OF small CALDER. IL Is simply Z
hollow cylinder OF Sufficient size. with.
In which the gun Is mt united on a Pc
destal. the whole being surmounted by
revolving dome, through which the
muzzle of the gun protrudes- This
cylinder. with its dome. Is placed upon
a low two-whccled carriage. which can
be drawn by three or more horses
The thickness of the steel forming
the cylinder and the dome may be
great or small, according TO the SER
vice for which the piece Is designed.
For light pieces IL may be just sum-
cient TO protect the men who serve the
gun against rife bullet-that Is,
half inch or an inch of steel. For
heavy artillery, hat may not move 80
rapidly. the thickness may be In
creased to keep out small shells.
A door at one point admits the gun
ners. The cylender Is large enough for
the gun mount and two men. Pro-
jectiles may be carried upon shelves
around the inside OF the cylinder.
Within this shield the two men may be
safe from fire and serve the piece under
a storm OF rife bullets. IL may even
ht hItu WHICH TIC HOEots ttt HiAth't
up ON the retreat. The cut shows such
a carriage for three FOUNDER on the
march. The interior of heavily
armored carriage tor five-inch gun is
also shown.
A few such carriages would enable
small battery TO hold it's own agaipst
great odds. BY throwing up bank OF
earth around each piece a temporary
fort may be forme requiring only "A
few men TO hold IL.
Another OF Herr Grusens In, entions
is novel form of armor for the pro-
lection Of rifed breech- loading NOR
tars. The rified bore projects through
a large sphere of cast iron. The ST here
being mounted on central pivot.
This ball.shaped armor closes circu-
lar hole 2 In horizontal plate. The
gunners load the mortar at the breech,
under the cLvsr of the horizontal
plate. and above this plate the mortar
is itself protected by the bali armor
from which striking shot will glance
off harmlessly. This cut shows an
s-inch mortar in its armor stand
The Ordnance Bureau OF the United
States Navy Department, having met
with brilliant success I'm the manufac-
ture of built up guns and in the tests
for suitable armor for cur ships, rs now
developing the armor- piercing she'll
and encouraging private enterprise in
that direction. In this field Lieut. w.
NJ. Wood u. ;. NJ. thus describes n
new method Il constructing wrought
steel projectiles by the aid OF the clec
tro welding process:
"rhe new shell Is formed of three
parts, which, after preparation are
welded together To form the whole.
| The head or point and the base piece
are forged In dies to the proper shape
| and finished with the fuse hole cut in
the base piece. The central portion is
| formed of solid drawn steel piping cut
and turned TO exact size and length.
The three portions are thin
welded together by the electro welding
process. AT each of the welding lines
burr is left projecting both outward
and inward The outside burr near
the point is either ground off or turned
TO form a collar OF the neat diameter
OF the bore of the gun. The burr at
the rear end is ground off and dove
tail groove is cut for the soft metal
rotating band leaving the projectile
ready for the hardening process.
"This process reduces the cost of the
| shells TO an extreme, minimum In com.
| parison with that OF the moulded stccl
armor- piercing shells and the pro less
having been succ sssfully applied TO tn,
| larger projectIles, ""n be easily
adapted TO smaller shells AID cart
ridges"