US1386362A - Article of manufacture for preventing accumulation of moisture upon glass surfaces - Google Patents

Description

M. C. PITTMAN.

ARTICLE OF MANUFACTURE FOR PREVENTING ACCUNIULATION 0F MOISTURE UPON GLASS SURFACES.

APPLICATION FILED SEPT. 71 I920.

Patented Aug. 2, 1921.

INVENZg.

. tained.

MARY GOWPER PITTMAN, OF WASHINGTON, DISTRICT OF COLUMBIA.

ARTICLE OF MANUFACTURE FOR PREVENTING ACCUMULATION OF MOISTURE UPON GLASS SURFACES.

essence.

Specification of Letters Patent.

Patented Aug. 2, 1921.

Application filed September 7, 1920. Serial No. 408,463.

To all whom it may concern:

Be it known that I, MARY Cowrnn Prrr- MAN, a citizen of the United States, residing at lVashington, in the District of Golumbia, have invented a new and useful Article of Manufacture for Preventing Accumulation of Moisture Upon Glass Surfaces.

1 am aware that there are inventions for cleaning car and cab windows, wind-shields, and such glass, of dirt or dust adhering thereto, and for clearing glass surfaces of rain, snow, or other moisture falling or accumulating thereon; that the inventions of the first kind are purely mechanical devices independent of any specific composition of matter; and that other inventions of compositions of matter, for which Letters Patent have been issued, lack usefulness because the application of them is difiicult, or the effect, when they are applied, is more or less temporary.

The object of my invention is, therefore, to provide a composition of matter in the form of an article of manufacture to be easily rubbed over transparent glass surfaces exposed to rain or other moisture, as a preventive of the rain or other moisture which falls or accumulates thereon impairing the transparency of the glass.

The article of manufacture comprises: 1. A pulp of cured tobacco leaves in which the concentrated juice of the plant is re- 2. Glycerin.

3. Water;

. 4. An incasing absorbent fabric.

5. A suitable holder.

In manufacturing the article I prefer to soak a strip of so-called plug or chewing tobacco, free from licorice, in such a solution ofglycerin and water that the proportionate parts of the glycerin and of the tobacco juice are about nine and eleven, respectively. When the strip has become saturated it is then incased in a piece of absorbent fabric which is then firmly fastened thereabout by means of a suitable holder in such fashion that the whole article of manufacture becomes an effective rain eraser, as illustrated in the accompanying drawing, in which- Figure 1 is a vertical section of the entire rain eraser showing: i

(t. The pulp of tobacco leaves saturated with the above-mentioned mixture of glycerin, tobacco juice, and water.

b. The incasing absorbent fabric.

'0. The holder.

Fig. 2 is a view in perspective of the on tlre rain eraser showing the shape into which the composition of matter may be convenis ently fashioned by incasing the saturated pulp as described above in an absorbent abrlc, and clamplngor otherwise fastening about it asuitable binder or holder.

Fig. 3 is a plan view of a suitable holder before it has been clamped or fastened about the composition of matter.

The advantages of the above-described articleof manufacture over other similar inventions are as follows:

1. The mixture of glycerin and tobacco juice, which is held in saturated strip of the fibrous pulp of cured tobacco leaves, does not'evaporate readily,-especially when incased in absorbent fabric and bound aboutby a suitable holder or binder.

2. The absorbent fabric or cloth covering serves the triple office;

a. Holding in its fibers some of the solution of glycerin and tobacco juice and transferring it readily to glass surfaces;

6. Absorbing sufficient moisture from the glass surface on which the moisture has accumulated to restore to the composition of matter the moisture which'rnay have been lost by evaporation, and thus maintain its effectiveness as an eraser; I

0. Giving such shape and form to the composition of matter that its full usefulness is assured.

My article of manufacture constitutes a rain eraser which is effective, enduring, everready, and may be produced and marketed at a price which will make it possible for every driver, motorman, engineer, and chauffeur to-be supplied with a means of increasing the safety of all kinds'of transportation.

I claim:

1. An article of manufacture for the prevention of the accumulation of rain or other moisture on transparent glass surfaces, comprising a pulp of cured tobacco leaves saturated with a mixture of approximately nine parts of glycerin and eleven parts of tobacco nice in solution, an incasing absorbent fabric, and a suitable holder.

2. A composition of matter comprising a pulp of cured tobacco leaves saturated with a mixture of glycerin and tobacco juice in solution.

MEET COWFIIR

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