US617533A - Smoke consuming furnace - Google Patents

Description

No. 617,533. Patented Jan. 1 ,1899."

w. LUTZY SMOKE GONSUMING FURNAlFE.

.(Applicafion me oc. 14, 1597.

(No Model.)

m: Ncnms PETERS no. murauru UNITED STATES ATENT OFFICE.

\VILHELM LUTZ, OF NUREMBERG, GERMANY, ASSIGNOR TO THE ACTIEN- GESELLSOIIAFT FUER PATENT VERWERTHUNG, OF SAME PLACE.

SMOKE-CONSUMING FURNACE.

SPECIFICATION forming part of Letters Patent No. 617,533, dated January 10, 1899.

Application filed October 14,1897. SerialNo. 655,228. (No model.)

T0 (11 whom it may concern.-

Be it known that I, WILHELM LUTz, engineer, a subject of the German Emperor, residing at Nuremberg,in the Kingdom of Bavaria, Germany, have invented certain new and useful Improvements in Smoke-Consuming Furnaces, of which the following is a full, clear, and exact description.

The smoke-consuming furnace protected by Patent No. 554,070, dated February 4, 1896, is so built that a number of nozzles opposite a full ground-plate for carrying the fuel will convey air upon the upper burning layers.

The object of the present invention is an extended employment of such nozzles in shaftfurnaces. The construction of such a furnace is illustrated by Figure 1 of the inclosed sketch,showing the cross-section. Around the shaft a there is an arrangement of vertical or slightly-slanting air-channels c, which are open at the bottom and communicate with the ash-box O. From them the nozzles d receive their air, which is spread over the upper burning layers, and in this way a complete combustion is brought about. With this arrangement the surface of the fire is very considerable in proportion to the fire-box, and consequently to the quantity of the fuel contained in it, so that an intensive combustion must take place. It is an essential advantage of the arrangement of the air-channels and the nozzles that by a strong band they form one piece, which can be easily taken out when it requires mending.

In larger furnaces, where the nozzles cl stretch across the ground-plate and where channels in the side walls serve for introducing the air, a simpler method may be used,

' which has the advantage of diminishing repa- This innovation is shown by the in- Fig. 2

rations. closed sketches in two executions.

shows all the nozzles combined into one. This is formed by a hollow vaultor a ceiling 6, with an inclosed arch f, so that a large nozzle is produced with the mouth g. The introduction of air is brought about by carrying the airheated air on the surface of the fire from open ings Z. The latter are protected by strong arches m and n in due distance. Over the three arches i, m, and n lies a ceiling 0. The last arrangement offers the advantages that the air-openings cannot be stopped up by cinders, that the air is equally distributed over the whole fire, and that a way is made both upward and downward for the fire-gases to burst into flames.

Having thus fully described my invention, what I claim, and desire to secure by Letters Patent, is-

1. In a smoke-consuming furnace, a ceiling or vault for the fire-box composed of one or more parallel hollow arches havingair-passages therethrough one or more solid arches and side drafts communicating with the interior of said hollow arches, substantially as described.

2. In a smoke-consuming furnace, a ceiling or vault for the fire-box, composed of one or more parallel hollow arches having air-passages therethrough and air-passages therebetween and drafts communicating with said air-passages, and one or more solid arches, substantially as described.

In testimony whereof I affix my signature in presence of two witnesses.

WILHELM LUTZ.

Vitnesses:

ALEX. WIELE, MAX SoHoIme.

Images