US79514A - Frederick sulter - Google Patents

Description

FREDERICK SUL'lEll., 04F-ST. PAUL, MINNESOTA.

Lata-s Patent No. 79,514, amdJm 13o, 1868.

IMPROVEMENT IN STEAM-BOILER FURNACES.

@in thttule referat til-in these tttters @that `mit making had nf the time.

TO' ALL WHOM IT CONCERN: Be it known that I, FREDERICK SULTER, of St. Paul, Ramsey county,.Sta te of Minnesota, have invented-an Improved Smoke-Consuming and Fuel-Saving Heater3`. and I do hereby declare the followingtobe an exact' description `thereof, reference being hadto the accompanying drawings, undvto the letters of reference marked thereon,- making a part of this specification, in Whichf Figure 1 represents a side elevation of the heater or furnace with a boiler at top. Figure 2, a front view of thereplaceand Hue. v Y ,Figure 3 shows'the mouth of the fire-hearth and boiler above.

Y Figure 4l shows the diminished sizeof the fire-hearth at the-.point eight inches below the boiler, andincl'ining upwards.

Figure represents the rear level of the hearth, tive inches .between the hearth and boiler above, and the rear of the furnace. v l Figure shows .how th'efurnace may be built with one, t\i'o,or three boilers,yso ns to be used as a stationary engine, a locomotive, or on steaznships.4 I i The nature of my invention consistsinl the construction of the furnace or heater forboilers', to be-built of brick or made of iron plates,- so that the 'hearth shall incline from the fireplace in a proper graduated inclination, with the greater inclination infront; from thence, ata regular incline, to a. levelnear the rear, where all the smoke, sparks, and cinders are forced, retained, and consumed in a close chamber,` having an air-passage at each side to receive atmospheric air that rushes into the spacebetwcen the hearth ,andboilen to increase .the heat and assist in consuming the smoke and cinders as they pass through the chamber .in the rear from theibottom of the hearth tot the narrow and upper sides'of the hearth, and against the lower .sidesof the boiler, the sparks ,and cinders falling fdown on the Hoor ofthe rear chamber. I i

` A represents the fireplace, and B`the nsh-boxl, that are four feet five inches wide; thereplace being eighteen inches high, and the ash-box thrty'inches depth, with ordinary close doors in front. i I

' `v C C are the vround air-passages,llocaterl, one on each side ofthe furnacqthree inches in diameter, and one infront of the'other, one beingr at the distance of six feet from ,tliefront of thefurnace, andthe other eight feet from the front of the furnace, viz, two feetahead ofthe other, "These airpassages C C extend -obliquely through the walls of the furnace, thelength of the passages, according-,to the thickness `of the ivalls. A n D is tbehearth, that is seventeen Afeet in length, from the fireplace A to the rear s'parli-chan1ber E. The front end is at an` incline from the fireplace of one and a half 4floot,toward the rear, at six'inches of a rise, heingeighteen inches vin front and twelve inches at the top of ineiinlationormouth of thefurnace; from thence, where the space between the boiler and hearth is twelve'inches,the'heartli inclines back on a straight line for u distance ofnine feet,to a point at eight inches between the boiler and hearth, the inclination being four inches, and' from this eight-inch point, for a distanceof three and a. half feet, ,the hearth extends at another inclination, of three inches rse,-to the point marked five inches, as the height of the boiler above the hearth. From this point the hearth is perfectlylevel for 4the distanceof three feet, tothe end ofthe hearth, where it enters the rear .spark-chamber, E; the hearthwith its arch dhove,'being oval in form, but perfectly circular below and above, on the inside; the arch covering the top of the boiler, to retain heat in theboiler, sotltat' when the fire of the furnaeeis put cnt in the eveningthc water of the boiler is kept warinuntil the. morn l ing, thus saving fuel; the top of the boiler having been protected fromV the cold air.

:E is the chamber-at the rear` of the furnace. That is seven feet in heightfrom its floor to the top of the arch, on Ithe yins'idel Itis thricel and n. half feet long, and 'tive feet lin width.. The top of this chamber is 4.curved or half'hrched-,rfromopposite the' end ofthe hearth D to the top of theinside tlues'of-theboiler, andthe rear end of'the boiler citends beyond the end of hearth twain-ches, so to force the current or course-of the ame, smoke, and cind'ers downwards, thecinders,sparks, &c.,vfalling tb the iloor of the chamber E. l

l A door, F, is intended'tobe placed vin the'rear, so that the chamber E can be cleaned at anytimerequired.

' G represents one or more ordinaryues in a. boiler.

H; the ordinary wind-pipe to clean the boiler. l J, a damper on the upright flue K, that is closed at night, so that the heat cany be retained in the boiler. The flue K is merely for the purpose of carrying o th 'smoke-when the fire is made, and L is the ordinary valve on a boiler.

What I claim as my invention,v and desire to secure by Letters Patent, is-

The construction of the inclined and horizontal surfaces of the semicircular hearth D, with its side airpassages C C, and sparkand draught-chamber E, when arranged and combined as herein described and for the purposes set forth.

FREDERICK SULTER.

Witnesses:

J. FRANKLIN REIGART, f EDM. F. BROWN.

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