US756420A - Automatic fly-brush for screen-doors. - Google Patents

Description

PATENTED APR. 5', 1904.

C. .E. SHOEMAKER.

AUTOMATIC FLY BRUSH FOB. SCREEN DOORS.

APPLICATION FILED SEPT. 18, 1903.

N0 MODEL.

Uniirnn STATES rammed April 5, 1904.

ATnNr OFFICE.

AUTOMATIC FLY-BRUSH FOR SCREEN-DOORS- SPECIFICATION forming part of Letters Patent No. 756,420, dated April 5, 1904.

Application filed September 18. 1908. Serial No. 173,744. (No model.)

To all whom, it may concern.-

Beit known that I, CLINTON E. SHOEMAKER, a citizen of the United States, residing at Forest City, in the county of Winnebago and State of Iowa, have invented a new and useful Automatic Fly-Brush for Screen-Doors, of

which the following is a specification.

trated in the accompanying drawings, in

which Figure 1 is an outside View of a doorway and door partly open and shows the application of my invention as required for practical use. Fig. 2 is a vertical sectional view that shows the positions of the operative parts relative to each other and the door.

The numeral designates the screen-door hinged to the door-casing 12 in a common way. A bearer 13 and a step 14: are fixed to the upper portion of the door-facing to support a rotatable brush 15 in a verticalposition, and bearers 16 and 17 are fixed to the facing above the door to support a second rotatable brush 18 in a horizontal position. fixed to the upper end of the brush 15, and sheave 20 is fixed to the brush 18, and in an intermediate position between the two sheaves on the brushes is a pulley 21, swiveledto the door-facing. A direction-pulley 22 is connected to the door-facing below the bearer 13 for directing a cord 23, that has a weight 24 on its free end, to the sheave 19, and a direction-pulley 25 is connected to the door-facing for directing the other end of the cord after it is passed over the swiveled pulley 21 and over the sheaves 19 and 20 to the top of the door 10, as shown in Fig. 1. By thus connecting a single cord with the door and extending 1t over the sheaves on the brushes, the

A sheave 19 is.

swiveled pulley, and the two direction-pulleys and attaching a weight to the free end of the cord a single and complete and efficient automatic mechanism is produced that will close the door whenever it is opened for a person to pass and at the same time rotatethe two brushes, as required, to scarcaway flies and prevent them from passing inward when the door is momentarily open. I

It is obvious that where there are double doors or, in other words, two doors hinged in one doorway my automatic mechanism may be applied to either one of the doors or to both.

Having thus set forth the purpose of my invention and its construction, application, and manner of operation, the practical utility thereof will be readily understood by observers, and

WVhat I claim as new, and desire to secure by Letters Patent, is-

' An automatic fly-brush and'door-closer comprising a rotatable brush mounted in a vertical position and a second rotatable brush mounted in a horizontalposition at the top portion of a doorway, a sheave fixed on the end of each brush, .a pulley swiveled to the door-casing between the two sheaves, a direction-pulley attached to the casing at the upper end of the vertically-extended brush, adirection-pulley attached to the casing under the sheave on the horizontal brush, a cord fixed to the top of a hinged screen-door and extended over the sheave on the horizontal brush, then over the directing pulley under said sheave, then over the swiveled pulley and over the sheave on the vertical positioned brush and from thence downward over the directionpulley at the top of the said brush and a Weight attached to the free end of the cord, arranged and combined to operate in the manner set forth.

CLINTON E. SHOEMAKER.

WVitnesses:

(J. A. IsAAos, B. H. THOMAS.

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