US35320A - Improvement in apparatus for casting bullets - Google Patents

Description

molds t' i.

AUNTTED y STATES PATENT Ormes.

EDWIN MAY, on INDIANAPoLis, INDTANA'.

IMPROVEMENT IN APPARATUS FoR CASTING BULLETS.

Specification ,forming part of Letters Patent No. 35,320, dated MayQO, 1862.

`Be it known that I,EDWI'N MAY, of Indi-- anapolis, in the county of Marion and State of Indiana, haveinvented a certain new and useful Improvement i'n the Mode of Casting Gonical and Hollow Bullets, of which the followl ing is a full and exact description thereof, reftion, l will `proceed todescribe its construction and operation. y

Figure 1, A, side view of machine made of malleable iron; B, end ofkettle made of eastiron; Fig. 2, A, plan or topviewof machine; B, plan of kettle; Fig. 3, B, side view of kettle; Fig. 4, section through kettle; Fig. 5, machine A inverted; Fig. 06, top of adjustable molds t' t',- Fig. 7, inside view or one-half of I place the pig-lead in e'. The re being below the same, the lead is melted and passed through the `port u into o and raised until it reaches the dotted line p p, when,acting on y the governor r, it closes the port u with the valve t.

" there is no dross to skim off by this method, a

large saving of laborand lead is effected. Having securedthe level` and supply of melted lead s in o, I proceed to cast the bullets floy placing the machine A Within kettle B at o. The melted l lead fills the mold t' t', and is then shoved along over the lifts and stops 1 1,which elevates the machine so that the mout-l1 of molds is out of the melted lead. ct by removing the catch q, which allows the plungers hh and k la to be forced down by means of the springs e e e e, h IL to press on the bullet and cut off the surplus lead, and 7c k to press within the bullet, thereby'swaging the same to a perfect outside surface. lead taken up by this operation is replaced from z by melted lead passing through the port u. After cooling I proceed to remove the bullets, which is done by putting down the lever a under catch q and releasingthe lever d by raising the same, when the springs e e e e, acting on the lever a over the hinge and fulcrum g, open the machine, and the'bullets fall out, ready for use without further preparation. The molds z' 'i are made'adjustable, so that to change the form of bullets itis only necessary to draw the screws n n n n and place other molds instead. ing the same together by means of the lever d insures a perfect joint, and no expansion under heat will affect the same.

What I claim, and desire to secure by Letters Patent, is-

l. The casting of conical and hollow bullets and swaging the same While the lead is in a plastic state by means ofthe molds z' i, in combination with the plungers h h 7c k, and the springs e e ee, when constructed and operated substantially as and for the purposes set forth.

2. The adjustable molds z' i and clamps j j,

in combination with the levers a and d, when constructed and operated substantially as and for the purposes set forth.

EDWIN MAY.

Witnesses: l

JOHN MULLANY, E. A. ELDER.

Then I release the lever The melted f The manner of clamp-

Images