US350592A

US350592A - Boiler

Info

Publication number: US350592A
Authority: US
Publication date: 1886-10-12
Anticipated expiration: 1903-10-12

Description

(No Model.)

E. V. HUTGHENS.

` BOILER. No. 350,592. y Patented-001;. 12, 1886. Fiyi; 1

ill nl? F WE ef @Af Attorney 'Witnesse5- UNITED STATES PATENT OFFICE.

ERASMUS V. HUTCHENS, OF EVANSVILLE, INDIANA. i

BOILER.

SPECIFICATION forming part of Letters Patent` No. 350,592, dated October 12, 21.886.

Application filed March 6, 1886.

To all whom it may concern:

Be it known that I, ERASMUS V. HUTcHENs, acitizen of the United States, residing atEvansville, in the county of Vander-burg, State of Indiana, have invented a new and useful Improvcment in Boilers, of which the following 1s a specification, reference being had therein to the accompanying drawings. p

My invention relates to improvements in steam-boilers in which the water-supply is brought to a thorotiglllydieated condition before it enters the boiler by passing around the fire-box and through a iiattened spiral coil over the tire, thence into the boiler. The boiler itself is also to contain tubes of various sizes, thereby affording greater heating-sur face and a more rapid generation of steam. The exhaust pipe also bears the improvement of discharging directly above the head of the boiler upward against the apex of a cone, thereby distributing the exhaust and causing a more uniform draft. I attain these objects by the mechanism illustrated in the accompanying drawings, in which- Figure l is aperspective view with the shell of the boiler broken off, exposing the various parts. Fig. 2 shows back view of boiler, part iusection. Fig.8 is a horizontal section,reierredto as follows: `A A A is the shell of the boiler. B B is the inner shell of the tire-box, which is divided into annular sections 1 2 3 4 by separators C C C. D D is the crown-sheet of the boiler, from which the tubes extend upward to the head of the boiler E E, the tubes varying 1n size, as shown. G is the exhaust-pipe; H, the cone to distribute the steam in its upward tendency. This cone is supported and held in position by braces or stays I l. The water-supply, being taken in at the base of the boiler through pipe at. J, passes around the boiler to the doors of the tire-box, thence upward inside the jambs of the door, then returning around the fire-box, thence upward to the annular section ,4 at the top of the trebox, around the same, then downward into the third section, thence around the fire-box into pipe K, running into the flattened spiral coil L L, ,continuing around in this coil, then pass- S eria1 No. 194,283. (No model.)

ing upward through the pipe M into the boiler. The connections of pipes K and Mare made with unions7 at N N. Ois a hanger with projections P to sustain and hold the spiral in a secure manner, also the support-at S, for the same purpose. The numbero't' these hang ers is not to be limited. They are to bev made hollow and to be filled with water. T are the grate-bars; U, lthe doors; V, the tubes; V, the smoke stack.

Fig. 2 shows thc back View of the boiler, J being the inlet for the water, which passes around the boiler, in the direction of the arrows, into the attened spiral at R.

Fig.' 3 is a top view of the boiler; showing the various sizes of the tubes, the large ones to be contained in the outer circle,then de crease in size, toward the center.

I am aware that prior to my invention boilers have been made with a tire-box surrounded by water, and with tubes that vary in size, and with au exhaust-pipe 'turning upward. I therefore do not claim such a combination, broadly; but y Vhat I do claim as my invention, and desire to secure by Letters Patent, is

l. ln a steam-boiler, the combination of a water tire-box having partitions, whereby the water is-caused to circulate through thesame, with the spiral coils located in the fire box or furnace.

2. In a steam boiler, the combination of a water lire-box having partitions, whereby the water is caused to circulate tlu'oughthesame, with the spiral coil located in the fire-box or furnace, and the fire-tubes of different diameter, substantially as shown and described.

3. In a steamrboiler, the combination, with an inverted conc located over the tire tubes of the boiler, of au exhaust-pipe discharging the steam on the apex ofthe cone,whereby a uniform draft is produced, substantially as shown and described.

E. V. HUTCHENS.