The sun. [volume] (New York [N.Y.]) 1833-1916, 1892-06-13
SHELLS AND POWDER CHARGES

sufficiently thorough. so that no dangerous
strains exist in the torginss.
this se S1 msds to
thd 81 cum at the
the entire length Of the bore.
In this same year also al the available
concentrated from the different arsenais at the
as the site for the army gun factory. and the
q ssnro on was begun there
IN is ne It moHsy
commencing the army gun factory at Water;
ior thss %. q he mortsrs '
.PoT Of a aeee
cannon when AIRED upon, It This carriage is
II T sna f n ss
yelocimetsr the object Of which is to measure
ye0s rec 81 at ash
In sediment to its free Tres reeoiI: such measure
Of tho velocity Of recoil furnishes a complete
Being siterwsrd fred upon its proper car:
rage the effect Of the combined action Of the
Hd pgSsSs
determining the effect Of the recoii-
checking appliance. and Of suitably modify
in modern carriages where tho recoil Of pow
erful pieces is taken up in q very short dis
TIE apt
ballistic determinations as. for instance. the
powder pressures along the bore Of the gun.
projectile, dc. The curves OF pressure along
the bore. with ord mary brown and smokeless
hsys al dasa
easy 70 proportion the, strength of the. gun at
the different points to withstand safely the
The Ordnance Department has pursued the
same course with respect to the INTRODUCTION
poWder. Samples Of the best devised have
been procured from Europe and this country
for test and analyss and the poWder makers
tanned. Every ENCOURAGEMENT has been given
to inventors In this country to aid them.
took the manufacture OF some experimental
disk springs at one OF its arsenals-a spring
required in the construction OF the spring
in this country. The results were ultimately
very satisfactory; and it is now producing these
ow psico With foreign s prees :. very
In 1880 experiments were made with ritied
mortars OF different twists OF rihing to deter
tars under construction. o
MIR hs srG 1852 the
Of papers bearing the title OF - Notes on the
Construction OF Ordnance containing the re-
suits Of It's own inyestigations and l,e expert
riages. powders. &c also such translatlons OF
papers published abroad as were considered
Important in their bearing on the manufacture
cannon. carriages. &c. These Notes" have
served to convey great deal OF information to
to steel makers and others Interested In me
cnanlcai questions. and have been in great de-
mnch SO So tha. the very limited edition pub,
lished Is usually soon exhausted.
GUNS AND CARRIAGES.
The following list will indicate the work
Ing new guns from lsS2 up to nJw mountain
gun and carriage now under test
Field service -a.2-inch: Onetype gun tested.
100 service guns 20 SesvSs guns
tested, ~ service guns under manufacture.
,:&G-inch Alortars-0ne type mortnr ana ear.
rage tested, lU service mortars ana carriages
now under manufacture.
siege Service-One tyne o-inch p l. Tihe car
riaxe tested: ten SO. :ice 5-inch b. L. rifles
uR seSen n .ncn Is. l. hncI Howitzer-Onc how
itzer tested ten service howitzerS under man
Searoast service-'fhe act o; iiarch 3. 1888
provided for continuing tho conversion OF me
lHinch smooth,b%res INTO Sine had been a.
fected by the insertion OF a wrought iron lin
ing tube into the smooth-hore gun 10 SIM
rs the ane Gun az lit was decided
TO try a lining OF mild steel. This modlticatlon
would a. so enable the departmentt throw con
siderable work to tho steel makers, Wen Witnln
the capacity OF their manufacturing facilities
which would aid materially int develop
II tho OF Gun steeI 6 oyyo fhs
earned. After the successful test OF a trial gun
lined with STEEL tuDe. an order Tor fifty SIMILAR
tuh"s was :iyrnt tho NidvaIe steel Morfs
ana the work uf conversion was done AT me
Mes' I..nt founiri. resulting in h!ty service
Eisht-imri. T. l., rifle, steel-2 type guns
manufacture or contract Ten inch D. l. rife.
s,eei-Ote tyT" gun under lost: 80 service
Euhs puhGer l'unulacture or conti act we've:
fouhI9r manu'acture or contract. Twelve
tncn ~. i mortgrs, cast, iron hooped-Vne
type under test; 50 service mortars completed (:
A. under manufacture. Twelve-inch b. l.
mortar. al teel-One type under test. ~
! inch II T. abe IN entail Gnnsmone type der