US1482501A - Attachment for grates - Google Patents

Description

Patented Feb. 5, 1924.

UNITED STATES NICHOLAS J. ZUZ ULIN, 0F MINOT, NORTH DAKOTA.

ATTACHMENT FOR GRA'IES.

Application filed July 11, 1923. Serial No. 650,767.

T 0 aZZ 117 710771 it may concern.

Be it known that I, NICHOLAS J ZUZULIN, a citizen of the United States, residing at Minot, in the county of Ward and State of North Dakota, have invented certain new and useful Improvements in Attachments for Grates, of which the following is a specification.

My invention relates to attachments for grates of stoves, furnaces or the like.

An import-ant object of the invention is to provide a. device of the above mentioned character, which will permit of the free circulation of air among the fuel in the fuel box, and thereby assure complete combustion.

Another object of the invention is the provision of a device of this character which 1s used in conjunction with a grate but is not in any way attached thereto, and which is therefore capable of being applied to any grate without any change in the construction of the grate.

A further object of the invention is to provide a device of this character which, when the grate is shaken will thoroughly agitate the fuel and permit air to pass 1n among said fuel.

Another object of the invention is to provide adevice in which the dome or cap members can be readily interchanged,removed or replaced without the use of tools or mechanical skill.

Another object is the provision of a de- Vice of the character which is simple of construction, easy and cheap to manufacture, and which is strong and durable.

Other objects and advantages of the invention will be apparent during the course of the following description.

In the accompanying drawings forming a part of this specification, and in which like numerals are employed to designate like parts throughout the same,

Figure 1 is a plan view of the device embodying my invention,

Figure 2 is a side elevation of the device applied to agrate, and,

Figure 3 is a transverse section taken on line 3-3 of Figure 2.

In the drawings, wherein for the purpose of illustration is shown a preferred embodiment of my invention, the numeral 10 designates the grate sections of a stove or furnace and are of the usual construction and form no part of my invention. In the formshown in the drawings, the grate is shown as comprising twoseparate grate sections which are rotatably mounted so as to partake of a rocking motion. Other types of. grate might be used if desired.

Transverse supporting rockers 11 rest upon the grate sections and carry a longitudinal base member 12 which is arranged substantially centrally of the rockers and of the grate sections. This base member 12 extends throughout the entire length of the grate and carries a plurality of upright frames, transversely arranged. These upright frames 13 are preferably cut from the same piece of metal as the longitudinal base member12,and twisted at right angles thereto. The upright frames 13 are formed with largeopenings 14 for the circulation of air and carry spaced upstanding prongs or arms 15 which are arranged vertically.

Hollow shells 16 have openings 17 to receive the upstanding arms 15, and these shells are adapted to fit over the upright frames18 and to be supported by said frames above and spaced from the grate sections 10. Each of these shells is hollow and is perforated as. at 18 to allow free circulation of air, and is provided with a mushroom shaped dome 19, which is also 1 perforated and which extends laterally be yond the shells, as at 20. The domes are also hollow, and consequently there are two chambers, one formed by the hollow shell and one by the hollow dome. The chamber formed by the dome 19 fits between the upstanding arms 15 and rests upon the upright frame 13, thereby steadying the shell and preventing downward movement.

These domes can be formed of any suitable material such as iire clay, cement, cast iron or the like.

In operation, the device is placed on a grate and the fuel is put into the fire box as usual. This fuel will settle down around the shell and dome and air will be allowed to circulate freely through the perforated shell and through the fuel about the shell. The dome 19 extends out into the fuel and causes freer circulation. When the grate is shaken, the rockers 11 will be caused to partake of a rocking movement, due to their shape, and the shells will thoroughly agitate the fuel and allow air to circulate.

Any number of these shells may be provided, depending upon the number of upright frames carried by the base. The shells are freely interchangeable and can be readily removed and replaced, by merely lifting them from the arms 15. The entire device. is bodily removable and as it is not in any way attached to the grate, no tools or skill is needed to so remove it, and it can be placed in any stove or furnace in the same manner as no changes need be made to the grate. With this improved device, lignite and soft coal can be used with good results as perfect combustion is caused by the free circulation of air.

It is to be understood that the form of my invention herewith shown and described is to be taken as a preferred example of the same, and that various changes in the shape, size, and arrangement of parts may be resorted to without departing from the spirit of my invention, or the scope of the subjoined claims.

Having thus described my invention, I claim:

1. An attachment for grates comprising, a supporting base, an air circulating shell carried by said base, and rockers carried by the base, said rockers being adapted to rest upon the grate sections whereby when the grate is shaken, a rocking motion will be imparted to the shell, through the rockers.

2. An attachment for grates comprising, a longitudinal base, upstanding arms carried by said base, perforated shells detachably mounted on said arms, and rockers carried by the base whereby when the grate is shaken a rocking motion will be imparted to the shells by reason of the rockers, and a more perfect combustion of the fuel will be accomplished.

3. An attachment for grates comprising, a relatively long base adapted to extend for the major portion of the length of the grate, upstanding transverse members carried by the base and projecting above the same and spaced longitudinally of the base, each member carrying a pair ofupstanding spaced fingers, and. perforated shells carried by the members. each shell having a pair of openinns for dctachably receiving the correspending pair of fingers.

4. In an attachment for grates, a supporting base resting on the grate, a transverse member carried by the base and having upstanding arms, a perforated shell detachably mounted on said arms, and a mushroom shaped dome formed on-the shell and extending laterally therebeyond.

5. An attachment for grates comprising a longitudinal base, upright support members carried by the base, spaced upstanding arms carried by the support members, perforated shells having openings to receive the upstanding arms, mushroom shaped domes formed on the shells, said domes being perforated and hollow, whereby two chambers are formed, one by the shell and one by the hollow dome, the walls of the chamber formed by the hollow dome fitting between the upstanding arms and securing the shell against undue movement, and the lower wall of said chamber resting against the support member and serving to prevent downward movement. 7

6. An attachment for grates comprising, a longitudinal base, spaced upstanding arms carried by the base,-perforated shells having openings to receive the spaced arms, a dome formed on the shell and extending laterally therebeyond, and transverse rockers carried by the base to impart a rocking motion to the shells when the grate is shaken.

7. An attachment for grates comprising a longitudinal base, upright supporting members carried by said base and arranged at right angles thereto, spaced upstanding arms carried by said upright support, perforated shells having openings to receive the upstanding arms, said shells being removably supported by said arms above and spaced from the base, domes carried by the shells andextending laterally therebeyond, said domes being hollow and perforated, and transverse rockers carried by the base and adapted to rest on the grate, sections, whereby when the grate is shaken, a rocking motion will be imparted to the shells so as to agitate the fuel in the firebox.

in testimony whereof I affix my signature.

NICHOLAS Z'LUZULH

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