US376827A

US376827A - Michael a

Info

Publication number: US376827A
Authority: US
Publication date: 1888-01-24
Anticipated expiration: 1905-01-24

Description

(No Model.)

M.l AIv W. LOUIS are. TQMURRMA- VENTILAIOR.

Y Ptented Jan.. 24, 1888.

IIIIIIIII IH E u; )I

l i I 4^ UNITED. STATES PATENT OFFICE.

MICHAEL A. w. lLOUIS AND CHARLES T. MURRAY, OE WASHINGTON,

f DISTRICT OE' COLUMBIA.

VEM'ILATOR)y l SPECIFICATION forming part of Letters Patent No. 376,827, dated January 24,1888. Application nien December' 12, 1ers. serial NO isasoi (No model.)

` To all whom it may concern.-

' the District of Columbia, have invented cer- Vaton of a window ha'ving vour invention ap-v v.as

tain new and useful Improvements in Ventilators; and we do hereby declare that the following isa full, clear, and 'exact description thereof. Y

Our invention relates to ventilators for win dows, and will be fully described hereinafter.

yIn the drawings, Figure l'is an inside eleplied thereto. Fig. 2 is a horizontal section taken above the meeting-railsy of the upper and lower sas'hes shown in Fig. l; and Figs. 3 to 1l, inclusive, are details of modifications.

A is the upper and B the lower sash. The

upper rail of the lower frame and the lowerrail of the upper frame are 'Iliade with inclined coinciding slots or perforations b b', and on top of the upper rail of sash B is placed a perforated register plate, C, which may be secured thereto by'bolts a, passing throughslots therein, or'by any other deviceV .that will permit the plate C to move in the direction of its length to open or Close the perforations. On its front edge the plateC is provided with a ange, a', having an index, a2, and the face of the rail beneath the flange and index is re-enforced byaplate,c, onwhich the words ()pen7 and Shut, or any other word of corresponding import, may bel displayed. The flange a. may extend along the entire length of the plate, as in Fig. 9, or may extend onlyashort distance along its middle, as in Figs.` 1 and 2;

Y and the plate C may be bowed, as in Figs. 2

and 7, or may be straight, asin Fig..6, and slotted, as at d, to take the sleeved screws 'that secure'the lock D in place.

In Fig. 3 the adjacent rails of the sashes are shown as perforated.

In Figs. 4 andA 5 the rail of sash A is beveled OIT, and in Fig. l1 both sashes are beveled.

upper rail of sash B to receive the plate C and Re-enforce plates Elma/y be placed upon the form a bearing for it, and we generally secure plates like the one shown in Figs.. 8 and 10 (marked D) on the under Side of Sash B; but theselast may be dispensed with. I The :plate C may be either perforated, asy shown in Figs. 2 and 6, or slotted, as in Fig. 7, and may slide longitudinally; or this plate may be without'slots, as in I4`ig..ll,'andA may move at right angles to its length, as in Fig. 11. In this modification a thumb-piece, c', might be provided to facilitate its operation.

Vhen the Openings through the sashes are entirely covered by the plate C, the air from without is oll course shut off, and the. amount we claim as new, and 4desire to secure by Letters Patent, is,-

The combination, with an y,upper and lower window-sash, of their meeting-rails provided with oblique perforatious registering with each otherwheu the sashes are both closed, and a plate provided with openings' registering with Said perforations in the meetingrails and adapted to slide longitudinally upon one of said rails to open or close the said perforations.y i I In testimonyr that We claim the foregoing we have hereunto set our hands,` at Vashingt'on, in the District of Columbia, in the presenceof two witnesses.

M. A. W. LOUIS.

n CHAS. T. MURRAY.-

Witnesses:

S. S. STOUT, CHRISTINA CALLAN.