Light Combat Cars Dec 1940
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Transcript of Light Combat Cars Dec 1940
8/2/2019 Light Combat Cars Dec 1940
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Fig. 2. Parts of the heavy duty clutch
By
Herb
Packer
Editor
A Light Combat Car being built in the
Rock Island Arsenal, Rock bland, Ill.
M ANY types of equipment
for our military forces are
turned out at Rock Is-
land, Illinois, but to automotive
men the production of small tanks
or light combat cars is probably
of the greatest interest. Many spe-
cial machining and assembly op-
erations are necessary in putting
the tanks together, details of
which come under the heading of
restricted activities and cannot be
described or illustrated at the
present time.The illustration at the start of
the article shows the general ap-
pearance of one of these tanks,
the interior of which is divided by
Fig. 1. One of the Cuiberson Radial DieselEngines, with special clutch and blower to
provide the necessary cooling
a partition, with the engine in the
rear compartment, and the front
compartment reserved for the
tank's crew. Access to the gun
turret is also had from the frontcompartment. This turret can be
rotated so that fire can be directed
toward any point on the com-pass.
24
8/2/2019 Light Combat Cars Dec 1940
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Fig. 3. Tank before track
C O M BA T C A R SHow Uncle Sam Builds Tanks
The writer had the opportunity of see-ing many of the assembly operations such
as the installation of one of the Guiberson
Diesel engines illustrated in Fig. 1. Afterthe engine is received from the Buda fac-
tory, it has a special clutch installed, this
clutch including a special fan or blower
for cooling purposes. This fan can be
clearly seen, being on the side of the
engine which is towards you in Fig. 1.
The parts of the special clutch are shown
in Fig. 2 and will be no surprise to ex-
perienced mechanics who have worked on
cars for some time, for this clutch is
merely a large edition of the conventional
multiple-plate clutch of the general type
used in some automobiles until a few
years ago. Throw-out collar, clutch control
fingers, plates, backing plate and springswill be readily recognized.
Coming to Fig. 3 we see a tank unit
itself after the engine has been installed
but before the track has been put on. The
big sprocket wheel at the right is the one
that gets power from the engine, delivered,
of course, through clutch, transmission,
etc. The man on top of the tank is busy
at the job of making a clutch adjustment.
The illustration shown at the beginningof this article is the tank after the track
has been installed. This track is composed
largely of steel and rubber and requires
no lubrication. In fact, the entire track
mechanism needs very little lubrication,
To the best of our knowledge, thisis the first article on tank
Dept. for use in any automotivepublication. Ed.
25
there being just two points which need
oiling. In Fig. 4 we see the business end
of the vehicle, the 37 m.m. guns which
will be installed before the tank goes out
for tests. Testing is done on a privatetrack on the large island on which the
arsenal is located.
Fig. 4. The 37 mm. guns with which these
tank. are equipped