US940570A - Revolving grate. - Google Patents

Description

A. L. WILSON.

REVOLVING GRATE.

APPLICATION FILED APR. 7, 1909.

Patented Nov. 16, 1909.

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REVOLVING GRATE.

APPLICATION FILED APR. 7, 1909,

Patented Nov. 16 1909.

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ANNIE L. VIILSON, OF BRUNSWICK, GEORGIA.

REVOLVING GRATE.

To all whom it may concern:

Be it known that I, ANNIE L. VILSON, a citizen of the United States, residing at Brunswick, in the county of Glynn and State of Georgia, have invented certain new and useful Improvements in Revolving Grates, of which the following is a specification, reference being had to the accompanying drawings.

This invention relates to improvements in open grates and more particularly to one revolubly mounted in a wall or partition between two rooms whereby it may be used for heating either of the rooms.

The object of the invention is to provide a revolving grate of this character which will be simple and practical in construction and which has improved means for revolving itand looking it in position so that the fire upon it may be used for heating either of two adjoining rooms.

With the above and other objects in View the invention consists of the combination and arrangement of parts and the details of construction hereinafter fully described and claimed, and illustrated in the accompanying drawings, in which-- Figure l is a side elevation of a wall or partition showing the improved grate arranged therein, Fig. 2 is a vertical transverse sectional view, Figs. 3 and 4: are horizontal sections taken respectively, on the planes indicated by lines 33 and 4-4, in Fig. 1, and Fig. 5 is a detail view of the locking bar and the upper end of the pivot which carries the grate.

In the drawings 1 denotes a wall or partition which separates two rooms of a house or building and in which my improved grate is arranged and mounted.

In practicing the invention a portion of the brick-work of the partition is omitted or removed and in the opening formed thereby, which opening is immediately beneath one or more smoke fines 2, is mounted a vertical pivot bar 3. The latter has its lower end rotatable in suitable step bar t on a longitudinal base bar 5 and its upper portion is rotatable, as shown at 6, in an arch bar 7 embedded in the brick-work or ma sonry of the partition at the top of the opening therein.

Carried by the pivot 3 and rotatable with the same is an open fire grate 8, or if desired, two of such grates may be carried by the pivot and arranged at diametrically op- Specification of Letters Patent.

Application filed April 7, 1909.

Patented Nov. 16, 1909.

Serial No. 488,438.

posite points. Said grates are vertically mounted upon a fire-back 9 preferably in the form of a castmetal box through which the pivot- 3 extends, as shown in Fig. 2. Said fire box is preferably filled with sand or other nonconducting material 10 and its reduced upper end is perforated as shown at 11 in Fig. l. Said fire back 9 is preferably of rectangular shape in cross section as shown in Fig. 3 and upon its opposite sides are provided flanges 11 between which the grates are arranged. Vi hile said grates may be of any form and construction they are preferably of the basket type and are re movably suspended between flanges 11 by providing their ends with down turned hooks or projections 12 to engage keeper lugs or projections on the flanges 11 will be readily understood upon reference to Figs. and 3 of the drawing.

The openings in the opposite sides of the partition or wall may be surrounded by any suitable reinforcing and ornamental framework l l and removably arranged in their lower portions beneath the grates are ash pans 15. The latter are preferably made to slide into and out of the frames 1% and at their front ends are provided upright ash screens 16 which will prevent burning coals from falling out of the grate and into the room.

For the purpose of revolving the pivot 3 and hence the grate or grates 8, I preferably provide upon the upper portion of said pivot beneath the arch bar 7 a ratchet wheel 17 adapted to be engaged by two pawl levers 18 by means of which said wheel, and hence the pivot 3, may be rotated. As illustrated, the pawl levers 18 are loosely mounted for sliding and swinging movement in guide brackets 19 depending from the ratchet bar 7 and upon their outer ends which project through openings or slots in the partition 1, are provided with handles 20. The ends of the pawl levers 18 are curved laterally l and made hook shaped as shown at 21 for engagement of the teeth of the ratchet wheel 17 and said ends 21 are loosely pivoted as shown at 22, to links 23 which latter swing from the pivot 3. Coiled springs 24 are rovided between the links 23 and the pawl levers 18 for the purpose of holding the ends 21 of the latter in engagement with the ratchet wheel. It will be seen that when the outer end or handle 20 of either of the pawl levers 18 is grasped and reciprocated the inner end of such levers will engage the ratchet wheel and actuate it so that either of the grates 8 may be brought into either of the frames 1% as will be readily understood upon reference to the drawings.

For the purpose of locking the pivot 3 against movement to hold the grates opposite or within the frames 14, I preferably make the upper end of said pivot square or with flat faces as shown at 25 in Fig. 5, and provide a slidable locking bar 26 the opposite ends of which project outside of the opposite side faces of the partition 1, and are provided with hand pieces 27. In the central portion of the locking bar 26 is an opening 28 of sutficient size to receive the squared end of the pivot 3 and allow it to rotate therein; and in said portion of the bar and communicating with opposite ends of the opening 28 are smaller openings 29 shaped to receive the squared end 25 of the pivot 3 so that said pivot cannot rotate when its end 25 is engaged with either of the openings 29. It will be seen upon reference to Fig. 5 of the drawings that when the looking bar is in its central position the pivot 8 will be free to turn in either direction and when said locking bar is shifted in either direction longitudinally to cause the end 25 of the pivot 3 to enter either of the openings 29. said pivot will be held against rotation.

In operation it will be understood that if desired, a fire may be made in each of the grates 8, or when a fire is in one grate only, such grate may be turned to throw the heat of its fire into either of the two rooms, the

same being accomplished by rotating the grate as above explained.

Having thus described the invention what claimed is:

l. The combination of a vertical pivot carrying a grate and having at its upper end a squared portion, an upper bearing plate in which said pivot is rotated, and a horizontally slidable locking bar arranged on top of said bearing plate and having intermediate its ends an opening of greater size than the squared upper end of the pivot whereby said end of the pivot may be rotated in it, the ends of said opening being formed with a smaller squared portion adapted to receive the squared end of the pivot to lock the latter against rotation.

2. The combination of a rotatably mounted grate-carrying pivot, a ratchet wheel fixed to said pivot, a pair of links loosely arranged on the pivot adjacent the ratchet wheel, a pair of actuating levers having pawls at their inner ends to engage the ratchet wheel at opposite points, the intermediate portions of said levers having loose sliding and swinging connections with said links, means for supporting and guiding said levers, and springs for holding the pawls of said levers in engagement with the ratchet wheel.

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

ANNIE L. WILSON.

Witnesses:

D. W. lVIIDDLETON, A. H. BOYLE.

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