US1471585A - Screen-door insect brush and destroyer - Google Patents

Description

- F. P. BESSETTE SCREEN DOOR INSECT BRUSH AND DESTROYER Oct. 23, 1923. r 1,471,585

Filed April 1. 1921 abbozmmg Patented GctIZS, 1923.

UNHTED stares PATE FRANCIS P.

Nr ors es.

BnssET'rE, or WICHIITA, KANSAS.

SCREEN-DOOR rnsnor BRUSH AND nnsraovnn.

' Application filed April 1, 1921.

, ing of the door to brush the flies from the erably of sheet metal,

I tail of door and thereby prevent their entry into the house. Incident to the construction of device adopted, many of the flies are actually destroyed while others are merely brushed off the door.

Referring to the drawings. forminga part of this specification, and wherein like numerals of reference designate corresponding parts throughout the several views, V

Fig. 1 is a view infront elevation of a screen door with the invention applied thereto,

Fig. 2 is a vertical sectional View taken on the line 22 of Fig. 1, and

Figs.

parts of the invention.

I In the drawing, reference numeral 1 designates the door frame, 2the screen door of the usual swinging type, and 3 thewire netting of thedoor. At'a suitable pointon the door is attached a shelf 4, formed prefand to this shelf attached at its lower end the fly brush, the upper end of which brush is attached to a follower 5. The brush is composed of a plu-- rality of transverse strips 6 formed from wire screening, and at staggered points adacent strips are connected together by wire clips 7, so that when distended, the brush' assumes a cellular form with diamond shaped cells. Theupper and lower extreme strips 6 are attached to the follower and shelf respectively by clips 8. To the central portion of the follower 5, is attached an op erating cord 9 which extends upwardly over a pulley 10, thence horizontally through a guide 12on the outer and upper corner of the door, thence through a pulley block 14 hung from the door frame at cent the said guide 12, and thence downwardly along the frame of the'doonwhere the fr e end is secured in a manner tobe described. The said pulley roller 10 is journaled on a rod or wire 15 having its ends ma in the county of Sedgwick and.

new and usebracket 17 has bracket 24, to' the 3 and 4 are perspective views in de a pointadja Serial No. 457,776.

bent at right angles andsecured in turned over ears 16. 'These ears are cut from the terial of the supporting bracket 17 and when bent up produce the opening in which the pulley 10 operates. The

wardly at substantially right angles and this angular end portion is secured by screws or the like to the upper edge portion of the door, substantially centrally ofthe upper portion thereof. To the outer end of the bracket 17 is hinged a downwardly extending member .19, and a portion thereof 20, extends above the bracket 17 for a purpose to -be described. To the lower end of the member 18 is hinged a horizontal tripping element 21, past which thefollower 5 trips when the latteris raised andby which it is suspended after tripping. Themember 21 has a right-angular front end 22 which engages the member 19 to maintain member 21 in the hori zontal.

To thedoor frame, substantially centrally of the'upper frame member, is attached a outer end of which is hinged amember 25,

said bracketmember 24, all for a purpose to be described; i

When the operation is understood, it will said supporting its rear end l8'bent down- I limited in its. outward movement by a stopextension 26 formed on be found that it is advisable, if not really necessary, to have some slack inthe operating cord, to permitoperation ofthe device as the door begins to open. This may be provided forby securing the end of the to'the frame with as much slack as is necessary given to the cord. with or without the inclusion of a coil spring for compensating purposes, or, as illustrated in the drawing, the free end of the .cord to the upper end of a light coil spring 30 having an enlarged lower end 31 and passingthrough a guide eye 32. the distance from said eye to the-lower end of the spring corresponding to the amount of slack re quired; I

In operation, the partsero assumed to be cord 9 may be attached lUU in the position. illustrated in the drawing.

ger element 20 as shownin Fig. 2 engages member 25, and continued outwardim'ovement of the doorcauses the, trigger element 21 to bewithdrawn from beneath thefollower' 5, whereupon, theweight with the addedtension of the cellular structure 6 will cause the said cellular brush to collapse slight further opening movement of the door,

' eye 32 to the position the trigger element 20 moves out of contact with the member 25 and these parts return to initial position.

Thus .it will be observed that the collapsing of the brush not only shoos the flies away, but also causes some of them to be caught between the strips crushed thereby. The proportion of flies brushed away and those crushed will de' pend upon the rapidity of movement of the brush in collapsing, and this can be regulated in an obvious manner by increasing or decreasing the number of strips 6, the weight thereof, or by the interpositioning of some additional operating means such as springs and the like, not shown.

After collapsing of the brush, continued movement of the door in being opened and after the slack has been taken up in the cord, will cause the brush to be again extended to the position shown in the drawing, and wherein the follower 5 trips past the trigger 21 and the latter falling behind said follower, supports the brush in extended position. Then, after being so set, closing of the door produces no effect, except to cause the slack to take place in the operating cord, as bythe spring 30 dropping down through the guide shown. It will be understood that as the door approaches its closed position. the triggerelement 20 en gages, tilts, and falls behind the member 25 without displacing from engagement with the follower 5.

Having fully described the invention, what is claimed is 1. The combination with a swinging door, of an insect brush, means for moving the brush in one direction,'and means whereby the brush is moved in the opposite direction at the moment the door approaches a predetermined position. I

2. The combination with a door, of an insect brush movable in one direction of its own weight, and means whereby the brush is moved in the opposite direction through the action of moving the door.

3. The combination with a door, of a foldable insect brush, and means whereby the brush is folded and unfolded throughthe opening of the door.

6 and to be I the trigger element 21 4. The combination with a door, of a foldable insect brush having a tendency to fold, means normally holding the brush unfolded, means for causing said means to release the brush to permit its folding upon initial opening'of the door, and means operable during continued opening movement of the door for unfolding the brush and causing the same to be held by said first means.

5. The combination with a door and its frame, of an insect brush thereon, means for holding the brush in one position, means for causing release of the brush from the first means on initial opening movement of the door, means for causing movement of the brush in one direction when so released, and means between the door and frame for returning the brush to its first position through continued opening movement of the door.

6. The combination with a door and its frame, of an insect brush thereon, means on the door for holding the brush in one position, means n the frame for causing release of the brush from the first means on initial opening movement of the door, means for causing movement of the brush in one direction when so released, and means between the door and frame for returning the brush to itsfirst position through continued opening movement of the door.

7. The combination with a door and its frame, of an insect brush on the door, means on the door for holding the brush in one position, means on the frame for causing release ofthe brush from the first means on initial opening movement of the door, means for causing movement of the brush in one direction when so released, and a flexible element between the brush and frame for returning the brush to its first position'through continued opening movement of the door. I

'8. The combination with a swinging door and its frame, of a brush support thereon, a self-folding insect brush on said support, a cord attached to said brush and said frame for unfolding the brush during opening movement of the door. means on the'door adapted to automatically engage with and hold the brush unfolded, and means on the frame for disengaging said means to permit the brush to fold on initial opening movement of the door.

9. The combination with a screen door, of a collapsible cellular insect destroying device thereon adapted to be set and released through movement of the door.

In testimony whereof I have hereunto set my handin presence of two subscribing witnesses.

FRANCIS P. BESSETTE.

Witnesses:

. CHAs. PETERSON, Jenn Emma.

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