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United States. Army. Ordnance Dept.

Handbook of artillery : including mobile, anti-aircraft and trench matériel online

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ends of the side rails project slightly beyond the chest to form steps
for the use of the cannoneers in mounting.

The frame consists of a middle and two side rails riveted to the
axle lugs. The middle rail is in the form of a split cylinder, one-half
passing below and the other half above the axle, which are joined in
front to form a seat for the pole and in rear to form a seat for the
pintle bearing. The pintle bearing is of bronze, made in halves and
bored out to take the pintle shank. The pintle has a swiveling motion
of 360 upon its shank, but is kept in its normal position by the spring
in the bearing.

The doubletree and singletrees are formed of flange steel. Two
doubletree rods each from the ends of the doubletree to the tie-rod

(130)



131

clamps on the axle to which they are pinned. A pole prop is hinged
to the rear end of the pole and when not in use it is secured by fasten-
ings under the limber frame and the prop-chain button on the foot rest.

The ammunition chest is a rectangular steel box built up of sheet
steel and riveted together. The chest door is hinged at the bottom
and swings downward and to the rear to an approximately horizontal
position, where it is held by two door chains, and is held in its closed
position by a shot bolt at each of the upper corners and by a lock in
the middle.

Inside of the chest the cartridges are supported by three vertical
diaphragms, flanged all around and riveted to the body of the chest.
Each of the diaphragms is perforated with 39 flanged holes. Corre-
sponding holes in the middle and rear diaphragms are connected by
conical brass tubes, which are cut away on top to reduce weight.
These connecting pieces support the front end of the cartridge case
and enable empty cases to be carried. The rear end of the connecting
piece is turned over the rear face of the flange of the perforation in
the rear diaphragm, and forms a stop for the rim of the cartridge
case. The chest door closes against the head of the case so that the
cartridge is firmly held in position. Suitable finger clearances are
cut in the flange of each cartridge hole in the rear diaphragm to
enable the fingers to get a good hold on the rim of the case in with-
drawing it from the chest.

Seats for three cannoneers are provided and the paulin issued with
each limber serves as a seat cushion. Watering buckets are carried
in suitable compartments provided for them between the seat and the
chest. At each end of the seat is a handrail which projects above
the top of the chest. At the front a lantern and two picket
ropes are carried. Brackets for carrying an ax, a shovel, and pole
prop are provided under the limber. All of the implements are
secured in their brackets by leather straps, and held by strap fasteners
provided for that purpose. With each limber are issued three oil
cans, each of the general form of a cartridge and of a capacity of
approximately two-thirds of a gallon. They are intended for hydro-
line, lubricating, and coal oil, and are to be carried inside the chest
in the central vertical row of cartridge holes.

Weights, dimensions, etc.

Weight, complete, empty pounds. . 964

Weight of tools and equipment carried do .... 101

Weight of ammunition carried do .... 675

Weight, completely equipped and loaded do 1, 740

"Rounds of ammunition carried in limber chest 36

Diameter of wheels inches . . 56

Width of track. do 60

Free height under limber do 22

Turning angle with carriage .degrees. . 80

Turning angle with caisson do 75



3-INCH GUN CAISSON, MODEL OF 1902.



This caisson, with the exception of the spokes and felloes of the
wheels is of metal throughout.

The frame is diamond-shaped and composed of two channel section
side rails riveted to lugs on the axle and meeting in front and rear
at the lunette and pintle, respectively.




FRONT VIEW OF CAISSON.

The ammunition chest is a rectangular steel box of flange steel
containing three vertical diaphragms which support 70 rounds of
ammunition. Caissons having serial numbers 1141 to 1284, inclusive,
have provisions for but 56 rounds.

The door of the chest is in the rear and hinged at the top, the door
opening upward and held at each end by a prop.

An apron of armor plate is hinged under the axle and may be
secured in a horizontal position for traveling.

A fuze-setter bracket is pivoted to the apron hinges on the right
side of the carriage at the rear. t is raised and secured for traveling.

The road brake is designed similar to that of the gun carriage, with
all parts as far as possible being interchangeable. The standard
56-inch wheels are used.

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133

Weight, dimensions, etc.

Weight, empty pounds. . 1, 424

Weight of tools and equipment carried do .... 84

Weight of ammunition carried do . ... 1, 312. 5

Weight, completely loaded and equipped do .... 2, 820

Rounds of ammunition carried 70

Diameter of wheels inches. . 56

Width of track do 60

Free height under caisson do. .-. . 22. 5

Turning angle degrees. . 75



3-INCH GUN CAISSON, MODEL OF 1916.



The frame consists of two side rails and a middle rail braced by
tie rods, and by the ammunition chest to which they are riveted.

The chest is a rectangular flange steel box containing three ver-
tical diaphragms supporting 70 rounds of ammunition.

The door is hinged to the front of the chest, swings upward on
its hinges and is held by a door prop on the left side.

An apron of armor plate is hinged below the chest for the protec-
tion of the personnel.




FRONT VIEW, SHOWING DOOR SWUNG UPWARD EXPOSING AMMUNITION.

Band brakes are used similar to those on the 75-mm. gun car-
riage, model of 1916, several parts of which are interchangeable.
Brakes are applied by a hand lever on the right side, operated by
one of the cannoneers seated on the chest.

Weights, dimensions, etc.

Overall length (traction pole removed) inches. . *64

Overall width do *74

Overall height do *57

Weight, empty pounds. . 1, 384

Weight of tools and* equipment carried do .... 53. 5

W T eight of ammunition carried do . ... 1, 312. 5

Weight, completely equipped and loaded , do .... 2, 750

Rounds of ammunition carried do .... 70

Diameter of wheels inches. . 56

Width of track do 60

Free height under caisson do 21

Turning angle .degrees. . 81

*Approximately.
(134)



135



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137

3-INCH GUN LIMBER, MODEL OF 1916.

With the exception of the chest, the limber is the same as the
75-millimeter gun caisson limber, model of 1918. The main differ-
ence in the chest is in the size of the holes in the diaphragms, they
being larger to accommodate 3-inch ammunition.

Weights, dimensions, etc.

Overall length inches . . * 120

Overall width do. ... * 74

Overall height do ... * 63

Weight, complete, empty pounds. . 987

Weight of tools and equipment carried (oil cans filled) do 113

Weight of ammunition carried '. .do 675

Weight, completely equipped and loaded do J, 775

Rounds of ammunition carried in limber chest do 36

Diameter of wheels inches . . 56

Width of track I do. ... 60

Free height under limb'er . do 24

Turning angles with carriage degrees. . 80

Turning angle with caisson do 81

* Approximately.



BATTERY WAGON, MODEL OF 1902.



The frame consists of two side rails joined at the front to form a
seat for the lunette bracket and projecting directly to the rear beyond
the axle. A forge vise is securely fastened to the left side of the frame
in place of the handle.




RE\R VIEW OF BATTERY WAGON.

The chest is of wood and is bolted to the side rails. The interior
is divided into four compartments; the largest being accessible
through a hinged lid at either end of the top. The other three com-
partments are in the lower rear portion of the chest, and are entered
by a door at the rear end which opens downward. Of the three
compartments, the right one is for the saddler's chest ; the left one
for the carpenter's chest, and the middle one for the cleaning mate-
rials and small stores chest. In the larger compartment is carried
the grindstone and frame; the jackscrew; and the packing chest
containing spare breech mechanism. A chest for spare sights is
furnished, which may be carried either in the battery or store wagon.

(138)



139

In rear of the axle and under the chest are carried three oil cans
of 5 gallons capacity each.

Fastenings are provided on either side of the chest for carrying
the two spare wheels.

The wheels used and carried are standard 56-inch. See page 158.

This battery wagon is used only in connection with the 3-inch gun
materiel, model of 1902.

Weights, dimensions, etc.

Weight of battery wagon, empty . pounds. . 1. 244

Weight of battery wagon, completely equipped and loaded do. ... 2, 747

Diameter of wheels inches... 56

Width of track do. ... 60

Free height under wagon ^ ... do 26

Turning angle degrees. . 75

BATTERY WAGON, MODEL OF 1902 MI.

The battery wagon, model of 1902 MI, differs from the model of
1902 in the following respects:

The chest with attachments is stronger, better braced, and at-
tached in a better manner to the frame.

The weight of the spare wheels is carried directly by the axle
instead of at the top of the chest.

The parts of the chest are bolted and screwed together so that
they may be readily disassembled if necessary. The corners are not
dovetailed but reinforced with corner irons inside and out.

This battery wagon is used only in connection with the 3-inch gun
materiel, model of 1902.

Weights, dimensions, etc.

Weight of battery wagon, empty : pounds . . 1. 444

Weight of battery wagon, completely equipped and loaded do 2, 947

Diameter of wheels inches. . 56

Width of track do 60

Free height under wagon do 24. 5

Turning angle with limber degrees. . 75

Weight (approximate) at lunette, loaded pounds. . 112



STORE WAGON, MODEL OF 1902.



The store wagon is the same as the battery wagon, model of 1902,
with the exception that the vise is omitted and a frame handle at-
tached in its place, and the body has but a single compartment, with
two doors on top. As on the battery wagon, the store wagon carries
two spare wheels and three oilcans.




SIDE VIEW OF STORE WAGON.

The store wagon is intended primarily for carrying silch stores,
spare parts, and materials as can be carried in the battery wagon and,
in addition, such stores as may be designated by proper authority.

Tire brakes are used operated by a hand lever on the right side
of the body.

The wheels used and carried are the standard 56-inch. See
page 158.

For detailed description and table of weights, dimensions, etc.,
see page 139.

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141

STORE WAGON, MODEL OF 1902 MI.

The store wagon, model of 1902 MI, is the same as the battery
wagon, model of 1902 MI, with the exception of the differences as
noted in the description of the battery store wagon, model of 1902.

For detailed description and table of weights, dimensions, etc.,
see page 139.



142




FORGE LIMBER MODEL OF 1902.



The frame of the forge limber is identical in all its parts with that
of the 3-inch gun limber, model of 1902. It consists of a middle and
two side rails, the middle rail being in the form of a split cylinder,
one half passing below and the other half above the axle, uniting in
front to form a seat for the pole and in the rear to form a seat for
the pintle bearing guide.

The chest is a rectangular flange-steel box having a lid hinged
along the front edge of the chest body. The lid is flanged all around,




1



TOP VIEW SHOWING INTERIOR OF FORGE LIMBER.



Shot



fitting over the body of the chest to make it water-tight,
bolts on the rear face of the chest secure the lid when closed.

The interior of the chest is divided into five compartments by
four vertical steel partitions. The middle compartment, which is
the largest, is fitted to take the field forge, the anvil, and several
small tools, the next compartment on either side carries horseshoes
and horseshoe nails, and the end compartments are fitted with
fastenings -for carrying smiths' and machinists' tools. A tubular oil
18322820 10 (143)



144




145

can is carried under each end of the chest, and various implements
are secured to the chest by straps provided for that purpose.

Weights, dimensions, etc.

Weight of forge limber, empty, without equipment pounds . . 958

Weight of forge limber, complete, equipped and loaded do. ... 1, 577

Weight of store limber, empty, without equipment do 955

Weight of store limber, complete, equipped and loaded do ], 106

Diameter of wheels inches. . 56

Width of track do 60

Free height under limber do 26. 5

Turning angle with battery wagon degrees. . 75



FORGE LIMBER, MODEL OF 1902 MI.

The forge limber, model of 1902 MI, is identical with .the 1902
model, with the exception that the 1902 MI model has an automatic
pole support, which is described on page 160.

The forge limber is used in connection with the American, British,
and French 75-millimeter materiel, and the 3-inch gun materiel,
model of 1902.

A detailed description and table of weights and dimensions is given
in a preceding article on forge limber, model of 1902, page 143.



STORE LIMBER, MODEL OF 1902.



The store limber is practically the same as the forge limber, model
of 1902, except that the chest is fitted with compartments for carry-
ing fire-control equipment, some of the compartments being padded
to protect the contents from injury.

For description and table of weights and dimensions, see preceding
article on forge limber, model of 1902.




TOP VIEW SHOWING INTERIOR OF STORE LIMBER.

STORE LIMBER, MODEL OF 1902 Ml.

The store limber, model of 1902 Ml, is identically the same as the
store limber, model of 1902, with the exception that it is fitted with
an automatic pole support, description of which will be found on
page 160.

For description and table of weights and dimensions, see preceding
article on forge limber, model of 1902.

STORE LIMBER, MODEL OF 1902 Ml.

The limber is used in connection with the American, British, and
French 75-millimeter materiel, and the 3-inch gun materiel, model
of 1902.

(146)



BATTERY AND STORE WAGON, MODEL OF 1917.



The battery and store wagon is made of metal throughout, with
the exception of the spokes and felloes of the wheels. The frame is
built up of two channel section side rails connected at the rear and
intermediate points by similar channels. The side channels are bent
inward near the front, meeting and forming a seat in which the




REAR RIGHT SIDE VIEW OF BATTERY AND STORE WAGON.

lunette bracket is riveted. At the rear of the frame is a compartment
for carrying recuperator, lubricating, and coal oil cans.

The chest is divided into compartments for carrying various articles
of battery equipment. The top compartments have horizontally
hinged lids and the lower compartments in front and rear have
vertical swing doors. Fastenings are provided on each side of the
chest for carrying spare wheels, and provision is made for carrying a

spare limber pole.

(147)



148



.

ill!




149

The battery and store wagons are identical, except that the battery
wagon carries a vise on the front end of the frame and a crow r bar
bracket below the frame on the right side, and the store wagon con-
tains packing strips and accessories for carrying a grindstone in the
upper rear compartment.

Standard 56-inch wheels are used. See page 158. The battery
and store wagon is used in connection with the American, British,
and French 75-millimeter materiel, and with the 3-inch gun materiel,

model of 1902.

Weights, dimensions, etc.

Weight of battery wagon, empty pounds. . 1, 705

Weight of battery wagon, completely equipped and loaded do 3, 325

Weight of store wagon, empty do 1, 705

Weight of store wagon, completely equipped and loaded do 3, 590

Diameter of wheels inches. . 56

Width of track do 60

Free height under wagons do 24. 5

Turning angle with limbers , degrees . . 75

Weight (approximate) at lunette of both wagons, loaded pounds. . 112

Overall length ". inches. . * 132

Overall width do * 74

Overall height do. ... * 88

* Approximately.



BATTERY REEL, MODEL OF 1917.



The battery reel, model of 1917, is a single two-wheeled vehicle
which is drawn by 4 horses. It is designed to carry, lay, and
recover 4 miles of insulated cable, and in addition carries 2 steel
chests containing fire-control instruments.

The frame is composed of two side rails connected by cross members
and diagonal braces. Near the front, the side rails converge and are
riveted to the pole socket. Axle brackets are riveted to the side rails,




LEFT SIDE VIEW OF BATTERY REEL.

in which are mounted the axle arms for the wheels and the drum
shaft on which the cable drum rotates.

On -each side of the drum are supports which are joined across the
top by a seat for two men. Across the frame in front of the drum is
secured an instrument chest divided into two compartments with
separate hinged lids, the lids forming foot rests for the personnel on
the seat. Across the frame in rear of the drum a large steel chest is
supported on springs. It has a lid hinged at the front and provided
with guide rollers for the cable at its rear. The larger fire-control
instruments are carried in this chest in specially designed com-
partments.

On the right side of the drum is secured a steel case in which a

plotting board is carried.

(150)



151

At either end of the drum is a sliding leather-faced cone which is
controlled by a hand lever at the left end of the operator's seat.
When either cone is engaged, the other is disengaged. The cone on
the left is connected directly to a gear train driven by a gear attached
to the wheel hub, and when er gaged causes the drum to revolve.
As the brake cone on the right is engaged the clutch cone is thrown
out of engagement. The wire, when being laid out, leaves from the
top of the drum, passing between the guide rollers attached to the
rear chest.

The cart, model of 1918, together with the reel, model of 1909MI,
is issued in lieu of the battery reel, model of 1917, for motorized

batteries.

Weights, dimensions, etc.

Overall length (tractioa pole removed) inc hes. . 74

Overall width do. ... 73. 75

Overall height do. ... 65

Weight of reel (without load) pounds. . 1, 385

Weight of reel, completely equipped and loaded do. ... 2, 005

Diameter of wheels , inches. . 56

Width of track do 60

Free height under reel do 19

Length of wire carried (approximately) miles. . 5



REEL, MODEL OF 1909 Ml.



The reel, model of 1909 Ml, is a two-wheeled vehicle designed to
cany, lay, and recover 8 miles of insulated cable. It has interchange-
able pole connections which enable it to be adapted to either horse
or motor traction.

The frame is composed of special shaped pressed steel members
connected by gusset plates and reinforce pieces, the pole socket at
the front, automatic pole support, a pintle at the rear, and the assem-
bled axle.




REAR VIEW OF REEL.

Two drums, which carry the cable are mounted end to end on an
s axle which rests in the upper ends of the axle brackets. In order to
lay the wire, the drums are disengaged from the clutch, permitting
them to revolve free upon their axes, but controlled by the braking
action of the drum latch and drum brake or the friction clutch when
applied for that purpose. To' recover the cable or wind it on the
drums, the clutch in the right drum is applied, and the drum made to
revolve, by means of the chain driving gear attached to the right
wheel. The left drum is driven by the right drum through a pin
clutch which is operated by a handle in the left outer end of the left

drum.

(152)



153




154

An operator's seat is secured to the right rear corner of the frame,
and the controls placed within easy reach. The clutch connecting
the drum driving gear and the right drum is located in a recess in the
right drum head and operated by a handwheel at the upper end of a
shaft mounted on the right axle bracket.

A lever on 'the right side near the seat operates the drum latch for
locking the right drum, and through the pin clutch, the left drum
when they are at rest. A leather faced brake shoe attached to the
drum latch lever may be brought against the flanged rim of the right
drum end plate to act as a brake.

A brake shoe controlled by a foot lever near the operator's seat may
be brought to bear against the flanged rim of the left drum end
plate.




FRONT VIEW OF REEL.

Wooden rollers are placed under the frame so that the wire will
be laid out or recovered without injury to it.

A tool box with lid opening on top is secured to the right of the
pole bracket in the space between the side rail and front cross rail.

The reel, model of 1909 Ml, together with the cart, model of 1918,
is issued in lieu of the battery reel, model of 1917, for motorized

batteries.

Weights, dimensions, etc.

Weight of reel (without load) : pounds. . 1, 459

Weight of reel completely equipped and loaded do 2, 426

Diameter of wheels inches. . 56

Width of track do. ... 60

Free height under reel do .... 19

Turning angle with cart T degrees. . 75

Length of wire carried yards. . 22, 880'



CART, MODEL OF 1918.



The cart is a two-wheeled vehicle made of metal throughout, with
the exception of the spokes and felloes of the wheels and the packing




% VIEW SHOWING REEL AND CART, LIMBERED.

within the chest. It is designed to carry part of the fire-control
equipment for the organization to which it is issued.




REAR VIEW OF CART.



The frame consists of a middle rail, two side rails, and two axle
brackets, all of which support the chest. Tne forward end of the

(155)



156




157

middle rail is fitted with a lunette and the rear end with a pintle.
Spiral springs are interposed between the side rails and axle brackets
to absorb the shocks when traveling. In connection with the axle
brackets, Belleville springs are used to take up rebound.

The chest is made up of flange steel plates riveted together and
fitted with doors, lock bars ; and packing devices, the interior being
divided into 17 compartments of different sizes. The chest is also
furnished with fixtures on the exterior for attaching an observation
tower.

The road brakes are of the contracting band type and are operated
from the front of the cart or from the operator's seat on top of the
chest by means of a brake lever on the right side.

This cart, together with the reel, model of 1909M1, is issued in lieu
of the battery reel, model of 1917, for motorized batteries.

Weights, dimensions, etc.

Overall length inches. . * 126

Overall width do * 74

Overall height. . . .- do * 62

Weight, empty, without body equipment pounds. . 1, 676

Weight, complete, fully equipped and loaded do 2, 004

Diameter of wheels inches. . 56

Width of track do 60

Free height under cart (approximate) do 26

Turning angle with reel (approximate) degrees. . 75

Weight of instruments pounds. . 431

* Approximately.



THE 56-INCH WHEEL.



All carriages and accompanying vehicles of the 3-inch and 75-
millimeter materiel, of American design, are equipped with standard
56-inch wheels, which are interchangeable for all vehicles of these
materiels.

The wheel is a modified form of the Archibald pattern, 56 inches
in diameter, with 3-inch tires. The tires are of steel. An oil valve
is provided so that the wheel can be oiled without removing it




SIDE VIEW OF WHEEL.

The wheel fastening consists of a bronze yoke fitting in the outer
end of the axle arm and is accessible when the hub cap is removed.

THE 57 BY 3.5 INCH WHEEL.

In place of the above 56-inch wheel a 57 by 3.5 inch wheel may
be used.

It is similar in design to the 56-inch wheel, but is fitted with solid
rubber tires.

Like the 56-inch wheel it is interchangeable on all vehicles of the
3-inch and 75-millimeter materiel.

(158)



REEL, MODEL OF 1917, FOR CAISSONS.



One caisson in every battery is provided with a hand reel for tele-
phone wire. It is riveted to the top of the caisson and contains 1
mile of field wire so arranged that the current goes through all the
wire. Terminals are provided for the connection of the instruments.




REEL FOR CAISSON, MODEL OF 1917, MOUNTED ON A CAISSON.

The reel for caisson, model of 1917, is a hand-operated reel for the
transportation and handling of telephone wires.

The frame is built up of two-flanged steel ends and two sides,
riveted together with four angle-iron corner reinforces and riveted


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Online LibraryUnited States. Army. Ordnance DeptHandbook of artillery : including mobile, anti-aircraft and trench matériel → online text (page 8 of 19)