US1791162A - Shade - Google Patents

Description

Feb. 3, 1931.

SHADE Filed April 22, 1929 A T TOR/viv Patented Feb. 3,'193-1 l d y n l l d i I y l .i d

UNirEosTATEs PATENT oFFlcE Y Application filed April 22, 1929. Serial No. 357,192.

This invention relates particularly toaverbly and operation may be made within the tically hanging porch shade. v scope of the appended claims. It is the object of theinvention to provide I claim: a shade of the character indicated that is so l. A shade element comprising a sla-t hav-y constructed as to insulate the inner surface ing a plurality of open and unobstructed pas- 55V of the shade against the heat naturally stored sages formed therein and passing theretherein by the action of the sunsrays upon its through from edge to edge thereof whereby outer surface, thereby preventing transfer of to permit the free circulation of'air thereheat to the interior of the porch protected by through. p y the shade by conduction. A Y 7 2. A shade element comprising a slat hav 6o In the drawing, the figure is a perspective ing a plurality of open and unobstructed juxview of a portion of a shade constructed in tapositioned passages formed therein and accordance with my invention., passing therethrough kfrom edge to edge Shades of the type vindicated are built thereofwhereby air may circulate freely up of a number of identical slats as indithrough the slat from edge to edge thereof.- 65 cated at 1-1, the slats being fastened to- 3. A shade of the character described comgether to hang in a vertical plane and in parprising a plurality of slats mounted to hang allel relation to each other by means of suitin a common plane and in spaced relation n able cords as 21,152, Thigeonstruetion also perto eachother, each slat having a plurality mits theme() be rolled into a small Compact of open and unobstructed juxtapositioned 7o bundle when not in use. passages formed therein and passing there- In carrying out my inventionI form, in any through whereby air may circulate freely suitable manner, a plurality of parallel conthrough the slat from edge to edge thereof. duits or passages as 3 in each slat and eXtenda JOHN B. ELLIS. ing therethrough to communicate with its upper and lower edges as clearly shown in the drawing. p

When a shade is constructed in lthis manner and properly hung to shade a porch or Y room from the suns rays, the outer surface 80 of the several slats becomes heated and the f heat penetrates the slats to the passages 3. Since by this means the air in the several pas' sages is heated a circulation of air is set up therethrough, cool air entering the lseveral v 'g5 passages at the bottom and discharging at a f higher temperature `at the top, thereby preventing the heat from reaching the inner surface of the slats and so heating the airto the 40 rear thereof. K Y l The desired result may be obtained more perfectly if the passages are inclined Vfrom the lower inner edge as at 4 to the outer and upper edge as at 5, the other two edges of Y l the slat being bevelled as indicated at 6 and 7 y ,y 95 respectively; v f

It is to be understood, of course, that while I have herein shown and described but one specific embodiment of the invention, changes l in form, construction and method of assem- Y 100

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