BARNES' VENTILATOR FOR MATTRESSES, ETC.

Many diseases are caused by the use of beds not properly aired; and

it is difficult, if not impossible, to properly air, or ventilate,

a mattress, made in the usual manner. If this could be done more

thoroughly than it generally is, much sickness would be avoided.

[Illustration]

To secure this object cheaply and efficiently is the design of the

invention herewith illustrated. By it a complete circulation of

air through the mattress is secured, which carries off all dampness

arising from constant use. Thus the mattress becomes more healthy for

sleeping purposes, more durable and better fitted for the sick room.

The ventilators consist of coiled wire, covered with coarse cloth

(to prevent the stuffing closing up the tube), running through the

mattress in all directions. The ends of the coils are secured to the

ticking by means of metal thimbles, inside of which are pieces of wire

gauze, to prevent insects getting in, but which admit air freely. The

cost of the ventilators is small, and they will last as long as any

mattress. They can be applied to any bed at small expense.

This invention was patented through the Scientific American Patent

Agency, January 10, 1871. The right to manufacture will be disposed

of in any part of the country. Further information can be obtained by

addressing the proprietors, Barnes & Allen, Hoosick Falls, N. Y.

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The third annual exhibition of the National Photographic Association

takes place at Horticultural Hall, Philadelphia, June 6, 1871. Prof.

Morton is to deliver two lectures on Light.

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Scientific American, Volume XXIV., No. 12, March 18, 1871 A Weekly Journal of Practical Information, Art, Science, Mechanics, Chemistry, and Manufactures. · 第 83 / 194 题