US1349982A

US1349982A - Heating appaeatus

Info

Publication number: US1349982A
Authority: US
Publication date: 1920-08-17
Anticipated expiration: 1937-08-17

Description

E. SIEVART. HEATING APPARATUS. APPLICATION men MAR. 29. I919.

Patented Aug". 17, 1920.

ATTORNEY- f r w m M @WV 1,] p 4.} ll firm 7 j T G I m .V H w w UNITED s'rArgs EDWARD SIEVART, 0F MANITOWOC, WISCONSIN.

HEATING APPARATUS.

Specification of Letters Patent.

Patented Aug. 17, 1920.

Application filed March 29, 1919. Serial No. 286,205.

To all whom it may concern:

Be it known that I, EDWARD SIEVART, a citizen of the United States, and resident of Manitowoc, in the county of Manitowoc and State of Wisconsin, have invented certain new and useful Improvements in Heating Apparatus; and I do hereby declare that the following is a full, clear, and exact descri tion thereof.

l y present invention has reference to new and useful improvements in hot air heaters, particularly to those which form units adapted for use in connection with furnaces and stoves of ordinary construction which are already in operation.

It is well known that in all furnaces and stoves of typical design that more or less heat is wasted by allowing the hot gases to pass up the chimney before the major part of the heat thereof can be extracted. The object of this invention, therefore, is to eliminate or reduce to a minimum this heat wastage. In carrying out this object a supplemental heater of unitary design is located between the furnace, stove or the like and the chimney with which the same is connected.

It is also an object ofthe invention to provide a simply constructed heater of this character which may be inexpensively manufactured of sheet metal, the parts being so arranged that the unit may be installed without material alterations in the parts with which it is to be associated.

A further object relates to provision of means for removing the soot-and the like from the interior of the heating unit.

Other less important objects will become apparent as the description proceeds, in which it will also be seen that the invention consists of certain novel features of construction, combination and arrangement of parts which are particularly shown in the drawings to which detailed reference will be hereinafter made.

In the drawings:

Figure 1 represents a vertical sectional view of my improved heater unit, said section being taken substantially on the plane of the line 11 of Fig. 2.

Fig. 2 is a horizontal section of the heater shown in the foregoing figure, the section being on the plane of the line 22 of Fig. 1.

Fig. 3 is a vertical sectional view of a modification of the invention.

The essential characteristics of the inven heat laden gases from the furnace or stove being directed into the inner casing at one side and led therefrom from the other side and 1I1t0the chimney; a cleanout passageway opens through the walls of the inner and outer casings so that soot and other deposlts may be removed from the inner casing. From the several figures of the drawing it will be evident that various changes may be made in the application of the invention without departing from anyof the principles thereof.

Referring particularly to the structure illustrated in Figs. 1 and 2, 1 represents a heating unit for connection with medium draft furnaces and the like, it will be seen that the outer casing 1 is in the form of a substantially rectangular box which is preferably formed of sheet metal, and that the same has a central opening in each of its vertical walls, said openings being designated respectively by the

numerals

2, 3, 4 and 5'. The inner casing 2 is also in the form of a rectangular sheet metal box and it is disposed within the outer casing 1, its sides being such that its walls are spaced from the walls of the outer casing to provide an air space between the two casings.

An inlet pipe 6 extends through the opening 2 and has its inner end connected with the adjacent wall of the inner casing 2' for communication therewith. This inlet pipe is designed to be connected with the stove or furnace pipe as the case may be. An

' outlet pipe 7 of similar construction extends through the opening 3 and has its inner end in communication with the interior of the inner casing 2', said end being secured to the wall of the latter. The damper 8 of ordinary design is located in the outlet pipe 7 to control the passage of heated gases to the chimney with which it is directly or indirectly connected.

The air to be heated by the hot gases passing into the inner casing 2 is directed into the outer casing through an inlet pipe 9 secured in the opening 42 and after such air is heated it is led from the outer casing through the opening 5 with which an outlet pipe 10 tubes of one row being staggered with respect to those of the other.

Inasmuch as the hot gases passing through the inner casing contain more or less sootand the like, I provide means for readily cleaning the same periodically. The preferred arrangement includes one or more passageways 12 which bridge the space between the walls of the inner and outer cas ings and are in communication with the former adjacent its bottom as shown in Fig. 1. Removable sliding covers 13 normally keep the passageways 12 closed to prevent the escape of the hot gases.

The form of the invention illustrated in Fig. 3 is quite similar to the type shown in Figs. 1 and 2, but is adapted for use in connection with heavy draft furnaces and stoves. The inner and outer casings, the inlet and outlet pipes for both of these casings, and the cleanout passageways are all substantially the same as set forth with respect to the other form. The air tubes which extend through the inner casing 52 are quite different from the tubes 11, however, they being rectangular in cross section and quite narrow in thickness as indicated at 11. It will be noted that these tubes 11 are arranged in three horizontal rows, the middle row being substantially in the plane of the longitudinal axis of the inlet and outlet pipes 6' and 7 respectively, the other two rows have their tubes so arranged that the passage of hot gases is considerably retarded in its movement within the inner casing.

- From the foregoing description and the several figures of the drawings it will be evident that I have devised a very simply constructed and economical supplemental heater which is capable of use with various types of furnaces and stoves, furthermore that the modification of the invention may be readily used with heating apparatus which has already been installed as well as that which is yet to be placed in operation.

I claim:

1. A heating unit comprising an outer casing, an inner casing therein and spaced from the walls thereof, a plurality of parallel rows of open ended fluid passageways disposed in the inner casing, their opposite ends being secured in the opposite sides of the inner casing to communicate with the space between the casings, the corresponding passageways of the several rows also forming parallel rows'disposed in planes at right angles to the planes of the first mentioned rows, an inlet pipe extending through the outer casing and communicating with the inner casing, an outlet pipe from the inner casing and extending through the outer casing, said pipes being adapted to convey hot gases through the inner casing, a fluid inlet into the outer casing, and a fluid outlet from the outer casing.

2. A heating unit comprising an outer casing, an inner casing therein and spaced from thewalls thereof, a plurality of parallel rows of open ended fluid passageways disposed in the inner casing, their opposite ends being secured in the opposite sides of the latter to communicate with the space between the inner and outer casings, the passageways of one row being staggered with respect to the passageways of the next adjacent rows, whereby to impede the passage of fluid through the inner casing, an inlet pipe extending through the outer casing and communicating with the inner casing, an outlet pipe from the inner casing and extending through the outer casing, saidpipes being adapted to convey hot gases through the inner casing, a fluid inlet into the outer casing, and a fluid outlet from the outer casing.

In testimony that I claim the foregoing I have hereunto set my hand at Manitowoc in the county of Manitowoc and State of isconsin.

EDWARD SIEYART.