US495288A - Ventilator - Google Patents

Description

J. P. ALMY.

(No Model.)

VBNTILA'TOR UNITED STATES PATENT OFFICE.

JAMES F. ALMY, OF SALEM, MASSACHUSETTS VENTILATOR.

SPECIFICATION forming part of Letters Patent N0. 495,288, dated April. 11, 1893.

Application filed October 31, 1892. Serial No. 4501456 (ll'o model.)

To all whom it may concern:

Be it known that I, JAMES F. ALMY, a citizen of the United States, residing at Salem, county of Essex, Commonwealth of Massachusetts, have invented a new and useful Improvementin Ventilators, of which the following is a specification.

The object of myinvention is to control the air passing from the outside into the room or other apartment, so as to break up the direction of the air and prevent drafts.

My invention relates to improvements in ventilators in which there are provided oppositely arranged wings connected together and pivoted in a suitable case and which may be set at any desired angle to regulate the amount of air passing through the ventilator.

My invention consists of a suitable case in combination with a ventilator located therein and adapted to be operated so as to regulate the amount of air passing through the said ventilator.

It further consists of two opposite, concaveshaped wings having connecting bars pivotally connected thereto, and it further consists in providing said wings with cushions for holding said wings in proper position during their movements.

My invention consists of certain novel features, constructions and combinations of parts hereinafter described and pointed out in the claims.

Referring to the accompanying drawings which form part of this applicatiom-Figure 1 is a perspective view of the ventilator with the case in which the ventilator is located in dotted lines. Fig. 2 is a vertical cross-section through Fig. 1 showing the usual position of the ventilator in practice. Fig. 3 is a vertical cross-section through Fig. 1 showing the position of the ventilator with the wire screen at an angle of forty-five degrees.

Like letters of reference refer to like parts throughout the several views.

Within a case A having the side air openings A and A is arranged a ventilator B pivoted in the ends of the caseat C. The venti lator consists of the opposite, concave-shaped wings D and E which are pivotally connected to each other by the cross-arms F pivoted to the case at C and pivoted to the opposite wings at G and H so as to allow a free movement to the win gsin changing their positions. Each wing has a lip I to which the wire screen J is secured, and the arms F at each end have a slot K in which the screen is held and fastened. At each end of the wings is secured a piece L which, as shown in the several views of the drawings, prevents air from passing through the ventilator except by the opening under the screen, and at the lower and upper ends respectively of the top and bottom wings there is provided a rubber cushion M as shown, which bears on the connecting crossarms F for the purpose of yieldingly holding said wings in their proper places during their movements, and as it is yielding it prevents binding of the parts as the ventilator is operated.

The case at its top and bottom is provided with concavities A and Afin whichthe opposite wings D and E fit when revolved to open the ventilator to admit air.

The herein described ventilator can be placed under the window-casing or in the lower casing of the window, or can be inserted in the walls of the building or used in any position where desired.

N represents a screw or other device by which the ventilator can be operated to admit air.

In the usual position of the ventilatorin ward and passes through the wire screen J into the room or other apartment.

I do not limit myself to the exact construction and arrangement shown as the same may be varied without departing from the spirit of my invention.

From the construction shown,it is obvious that the two opposite wings move as one so that the operation of one controls the other.

Having thus ascertained the nature and set forth the construction of my invention, what I claim as new, and desire to secure by Letters Patent of the United States, is

1. In a ventilating apparatus, the combination with a case having air openings, of aventilator having opposite Wings connected together and pivoted in said case, and a wire screen extending between said wings and secured thereto, substantially as set forth.

2. In a ventilating apparatus, the combination with a case having air openings and concave in its top and bottom, of a ventilator consisting of oppositively arranged concave shaped wings connected together and pivoted in said case and adapted to register in their movements with the upperand lower concavities of the case and a wire screen extending between said wings and secured thereto, substantially as set forth.

3. In aventilating apparatus, the combination with a case having air openings, of a ventilator pivoted in said case and consisting of opposite wings connected together and provided with pieces attheir ends for preventing the passage of air through the ends of said wings, substantially as set forth.

4. In a ventilating apparatus, the combination with a case having air openings, of a ventilator having opposite wings, cross-bars connecting said wings and pivotally secured thereto and a cushion between said wings and bars, substantially as set forth.

5. In a ventilating apparatus, the combination with a case having air openings, of a ventilator pivoted therein and consisting of two .opposite wings, connections between said win gs and a cushion located between the wings and the connections between said wings, substantially as set forth;

6. In a ventilating apparatus, the combination with a case having air openings, of a ventilator having opposite wings connected by cross-bars pivoted to the wings, a wire screen extending between said wings, and secured to lips of the wings and to the slots in the cross-bars, substantially as set forth.

7. In a ventilating apparatus the combination with a case having side air openings and concave inwardly in its top and bottom, of a ventilator pivoted therein and consisting of oppositely arranged concave-shaped wings pivotally secured together and adapted to register with the concave top and bottom of the case, and side pieces secured to the wings for preventing the entrance of air under the ends of the wings, and a yielding cushion for holding said wings in their proper positions during the movement of said wings, and to prevent binding, substantially as set forth.

In testimony whereof I have signed my name to this specification, in the presence of two subscribing Witnesses, this 19th day of October, 1892.

JAMES F. ALMY.

W i tn esses E. L. HARLOW, HELEN DURWARD.

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