US1456521A - Sectional water grate - Google Patents

Description

May 29, BQZS.

H. F. MORRIS SECTIONAL WATER GRATE 2 'sheets-sheet 2 Patented May 29, 1923.

STATS HENRY F. MORRIS, OF COLLINGSWOOD, NEWT JERSEY.

SECTIONAL WATER GRATE.

Application filed March 3, 1921.

! 10, all whom may concern.'

Be it known that l, HENRY F. Moulds, a citizen of the United States, residing at Collingswood. in the county of Camden and State of New Jersey, have invented certain new and useful linproveinents in Sectional Tater Grates, of which thefollowing is a specification.

This invention relates to sectional forced draft water grates and is an improvement upon Letters Patent of the United States No. 1,261,268 granted to myself and Bitner Shinn, April 2nd, 1916, and Letters Patent No. 1,348,235 grant-ed to myself August 3rd, 1920.

An object of the present invention is to provide means in a sectional water grate to admit a greater volume of air to the fire at a very low pressure, lessening the cost of wear and maintenance of said grate, while retaining the stability and advantageous features of the grate described in the Letters Patents aforesaid.

rlhis object is attained by the provision of an extension on one side of the water grate sections, through which extension holes or openings are cored or drilled as may be found necessary for increasing lthe volume of air to the quantity desired. rlhese holes may be of such number and area as may be required for the purpose stated. The Isaid extension may be constructed in such shape, width or thickness that the heat therefrom will be absorbed by the water-body of the grate, preventing the melting or warping of the structure of the said extension.

A further object of the invention is to provide a water grate of the class described whereby the sections comprising said grate may be constructed with an extending portion or lip adapted to seat in a recess provided in the adjacent section.

A further object of the invention is to provide a water grate of the class described that may be constructed in sections and means to firmly secure said sections to manifolds to provide for the continuous circulation of water throughout the grate.

A further object is to provide a grate of the class described whereby an increased volume of air may be admitted thereto without increasing the pressure.

l attain these and other objects by means of the construction and arrangement of parts Serial No. 449,524.

illustrated in the accompanying` drawings, wherein Figure 1 is a sectional plan fiew of a plu rality of grate bars or sections secured to manifolds, on the line 1-1 of Fig. 2,

Figure 2 is an end elevational view illustrating a means of securing` the grate sections in position,

Figure 3 is a transverse sectional view on line idf-3 of Fig. 1, and

Figure 4l is a perspective view, in cross section, illustrating the perforated extensions on the side walls of the grate bars.

Like parts are referred to by like numerals throughout the drawings.

Referring to the drawings in detail the numeral denotes a forced draft water grate of the same general type as the grate described in Letters Patent No. 1,261,268 granted to myself and Ritner Shinn, April 2nd, 1918, provided with the individual grate bars 141 having the cored openings or holes 114 for the passage of air and a water inlet pipe 11 at the front of said grate whereby water enters a manifold 11 and circulates thru the cored openings 23 in said grate 10. A water outlet pipe 12 for the egress of water from a similar manifold 12 is provided at the rear of said grate 10, whereby the water after circulating thru said grate and being` subjected to the heat therein is carried off, thus providing for a continuous circulation of water thru said grate, preventing the overheating and melting thereof.

The individual grate bars or sections 23 containing the cored water portions 23 are secured to the manifolds 11 and 12 by means of the screw joint nipples 13, as illustrated in Fig. 1, insuring a water tight connection.

As a means for regulating the egress of air from the cored openings 14, discs 15 provided with the openings 16 are shown. This is the method described in Letters Patent No. 1,261,268 hereinbefore cited.

The area. of the opening 16 is determined by the pressure of air to be exerted thereagainst. The greater the pressure the less the area of the said openings.

l find in practice, however, that when working under a low pressure, an increased volume of air may be required, without increasing' the pressure, over and above the fullest amount of air that may be had from tion and is adapted to seat or rest in a recess 19 provided in the adjoining or adjacent grate section.

This method is followed in sequence wit-h grate sections until the desired sized grate is assembled.

Plates 2O may connect the grate sections at the base in pairs by means of set screws 22 and plates. 21 may likewise connect the lgrate sections at vthe top in pairs b-y means of like set screws 22, so that said grate sections and plates form an unbroken series, or said plates 20 and 21 may be used to secure adjacent grate sections together at the top and base, alternately.

The openings 17 in the extensions 18 may be made in various shapes and dimensions Il O may be necessary to increase or decrease the volume of air to be admitted ther'ethru and to provide for the absorption of heat passing therethru by the water circulating thru the openings 23; the walls normally being of a thickness that will so permit, thus preventing the overheating of said extensions 18.

It will now be apparent that I have devised a novel and useful grate construction which embodies the features of advantage enumerated in the statement of the invention and the above description and while I have in the present instance shown and described the preferred embodiment thereof, which has been found in practice to give satisfactory and reliable results, it is to be understood that the same is susceptible of modification in various particulars Without departing from the spirit and scope of the f invention or sacrificing any of its advantages.

Having thus described my invention what I claim as new and desire to secure by Letters Patent is l. In a grate construction of the class described, a plurality of spaced grate bars, each grate bar having a lateral extension along one side thereof and arecess in its opposite side, said extension on each Vbar` bridging the space between it and the next adjacentfbar and restinoin the recess therein and plates securing adjacent barstogether at the top and base, alternately, to hold same in position, substantially as described.

2. In a grate construction of the class described, a plurality of spaced grate bars, each grate bar having a lateral extension along one side thereof and a. recess: in its opposite side, said extension on each bar bridging the space between it and the next.

adjacent bar and resting in the recess therein, plates securing adjacent bars together at the top and base, alternately to hold same in position and perforations in said grate bars, substantially as described.

In testimony whereof I aix my signature.

HENRY I?. MORRIS.

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