US870832A - Closet-tank. - Google Patents

Description

FRANK H. LINDENBERG, OF COLUMBUS, OHIO.

CLOSET-TANK.

Specification of Letters Patent.

Patented Nov. 12, 1907.

Application filed January 22, 1906. Serial No. 297.154.

To all whom it may concern:

Be it known that I, FRANK I-I. LINDENBERG, a citizen of the United States, residing at Columbus, in the county of Franklin and State of Ohio, have invented certain newand useful Improvements in Closet-Tanks,

' prising a Wooden skeleton frame having an outer shell of metal, and an inner lining or receptacle of metal. By this construction the warping and swelling of wooden tanks which disarranges the fittings is avoided and the sweating ofan all metal tank overcome; also air spaces between the metal shell and the inner lining are provided. This provides dead air spaces which greatly aids in maintaining the tank in a normal state under varying conditions.

Finally the object of the invention is to provide a tank of the character described that will be strong, durable and efficient and in which the several parts are not liable to get out of working order.

With the above and other objects in view, the invention consists of the novel details of construction and operation, a preferable embodiment of which is described in the specification and illustrated in the accompanying drawings, wherein-- Figure 1 is a front elevation of the skeleton frame, Fig. 2 is an end elevation of the frame, Fig. 3 is a rear elevation of the frame, Fig. 4 is a plan view of the tank,

and, Fig. 5 is a transverse vertical sectional view of the tank taken on the line rt .l, of Fig. 4.

In the drawings the numeral 1 designates a skeleton frame, preferably formed of wood and having a shape substantially the same as the finished tank. This frame comprises vertical corner posts 2, right angular and rounded in cross-section, so as to produce in the finished tank, rounded corners. The corner posts are connected to vertical rear posts 3 by horizontal bars 4 of which three at each end of the frame, are preferably provided, one being placed at the top, one at the bottom and one centrally. The inner rear sides of the parts 3 are rabbeted out to receive three longitudinal bars 5 forming the back or rear of the frame, substantially the same as the bars 4 except the top bar, which is set slightly below the upper edge of the frame. The corner posts 2 are connected across the front of the frame by longitudinal frame bars 6 placed at the top, bottom and center like the bars 4. These bars 6 are connected at the center of the frame by two vertical bars 7 Across the bottom of the frame and supported at each end by the bottom end bars 4, I arrange a supporting board 8 which has a width slightly less than the distance between the bottom frame bar 6 and the bottom rear bar 5. .It is to be noted that a frame constructed as described, is not only thoroughly braced and of great strength and extremely light, but provides a number of open spaces in the front, ends and rear.

As is best illustrated in Figs. 1 and 2, the space between the inner tank 10 and the outer shell is closed by the strips 2, 3, 4 and 6 around the upper and lower edges of the structure. The air spaces provided between the shell 9 and the tank 10 are therefore d cad air spaces. 1t has been found that more damage is caused by the sweating of these tanks, than by their leakage. Where atmospheric air has been permitted to come into con tact with the inner tank l0,the moisture in said air condenses when it strikes upon the tank filled with cold water and the tank is caused to sweat This water runs down the outside of the tank and where the tank has been covered with an outer wooden shell, this shell is caused to warp and split. By providing the dead air spaces, the sweating of the tank is prevented.

To the front and ends of the frameavcrtical outer shell 9 of metal, is suitably secured. The metal shell gives the tank the appearance of being constructed ontirely of metal and may be enameled or coated for the. purpose of ornamentation. It will be observed that the frame has a substantially rectangular interior. Within the frame the usual lining or receptacle 10 is placed, so as to rest on the supporting board 8. The lining fits snugly in the frame and is surrounded on all sides by the air spaces provided by the frame between the lining and the outer metal shell. The air spaces are non-conductors of heat and cold and should a cold liquid be introduced into the lining, the outer shell will not sweat even though the temperature of the air about the outside of the shell is much higher than that of the liquid. The frame besides affording the heroin mentioned advantages, providcs eflicicnt means for attaching the fittings and the lining.

What I claim, is:

In a closet tank, the combination with a metallic tank, of a skeleton wooden frame which incloscs said tank and an outer metallic shell which extends around the front and ends of the skeleton frame, said skeleton frame forming a closure for the space between the tank and the shell about the upper and lower edges of said tank to thereby provide a dead air space between the outer shell and the tank to prevent sweating.

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

FRANK H. LINDENBERG.

Witnesses A. L. PHELPS, M. B. ScHLuY.

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