Search Images Maps Play YouTube News Gmail Drive More »
Sign in
Screen reader users: click this link for accessible mode. Accessible mode has the same essential features but works better with your reader.


  1. Advanced Patent Search
Publication numberUS1220794 A
Publication typeGrant
Publication dateMar 27, 1917
Filing dateMar 18, 1916
Priority dateMar 18, 1916
Publication numberUS 1220794 A, US 1220794A, US-A-1220794, US1220794 A, US1220794A
InventorsWalter Edwin Stephenson
Original AssigneeWalter Edwin Stephenson
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Motor-radiator air-draft control.
US 1220794 A
Abstract  available in
Previous page
Next page
Claims  available in
Description  (OCR text may contain errors)


APPLIQATION FILED MAR. I8. 1916 l.22,0,794; Q Patented Mar.27,1917.

WALTER npwm s'rnrnnusomor noosnvnm, new Yong MOTOR-RADIATOR AIR-DRAFT ooim'non.

Specification of Letters Patent.

Patented Mar. 27, 1917.

Application filed March 18, 1916. Serial .Nc. 85,097.

To all it may concern: 1 Be itknown that I, VVAL'I'ER E. STEPHEN- soN, a citizen of the UnitedStates, and a residentof Roosevelt, in the county of Nas sea and State of New York, have invented a new and Improved Motor-Radiator Air- Draft Control, of which the following is a full, clear, and exact description.

My invention relates to means for re ulat- 1 ing the air circulationlhrough the ra iator provide a simple and inexpensive .device' whereby air 'may be caiised to circulate through some part of the radiator while itv object of the invention is'to provide a device of the class described whereby air may .be' caused to circulate through the entire radiator or prevented entirelyfrom circulating through. the radiator.

.W1th the above and other objects in view; the nature of which will more fully appear as the description proceeds, the invention consists in the novel constructiom combination and arrangement. of parts as herein fully described, illustrated and claimed. In theaccom'anying drawings, forming part of the app ication, similar characters of reference indicate corresponding parts in all .the views.'

lligure 1 is a side elevation. of a motor vehicle radiator provided with anembodiment of my invention, certain parts of which invention are brokenaway to show the details of construction, the airalraft control in this figure being shown obstructing the air circulation through the radiator Fig. 2 is a similar-view showing the airdraft control of the radiato1j=permitting cir' culation through the upper=partof the radiator while-preventilig ail ?circulation ina the lowerpart thereof; V F ig. 3? is a view similar tmFig. 1, showing the "air-draft control in the. position per-- 45m itting partial obstruction of the circular tion iiiboth" the upper and the Lower parts; 4 is a frontelevation of the device showmin Fi shown in section aboutthe deriee; and 60 Fig.i 5; isa, fragmentary enlarged section throu'h the radiatorand device. 1

R0 errii g to the drawings, 6 isthe radistar of .thefi'notor. vehicle, of the common .cellula' K struetiire; at thef rear of w] 1 ieh 11a:- su tangular" shette horizontal r0 I of a motor vehicle. An object thereof is to is'eiicluded from other parts. A further 3 the engine hood being are l disposed across thethe air cells 8 of the radiator Each shutter preferably terminates with a trunnion 9 at each end at the upper horizontal edge of thefsh'utter -The 'trunnions bea r in loops 10 formed ina strip 11 extended a] ong-the vertical bordering cells of the radianor.

may be provided for hinging the shutters- .7 to the radial or. a

Each shutte r has'an extension 12 at each.

end fitting into "an individual diagonal The strips between the loops are depressed into the' air cells below" the surface 0:the radiator, as best seen in Fig. 5. By the engagement of the trunnions slot provided in a slide 13 mounted along 1 the ends of the shutters' in suitable guides;

14 secured to the radiator. It will be seen from Figs. 1. 2, and 3 that all the slots are open into the edge 'ofjthe slide' restin g against the radiator so that the extensions 12 of the shlltl ers may come inoontact with the surface of the radiator, thereby allowing 'se the shutte'rto' come in contact with the sur k face of the ra liat'or, thus perfectly' closin g the cells and obstructing flow of air threthrough- A lumber; of the upper slots marked 15 are arcuate and are atagreater slides 13 have an 'initial displacement rela 'tivmr to the exivensions or shutters engaged by said s1ot'13 before said extensions are angle to the :dge of the slide than the i engaged hy the straight sides 18 of the-" slots. I13 cons q ience the. shutters engaged in, the slflts 15 are caused to operate,' while those engaged in the slots 16 remain inoperative until tl'iey are e'ngagefdjand moved by the contini'ons side 18 of the slots 16.

Due to theless er ang'hlarity of thelslots 16, I

they displace ,t he shuttersengagedetherehx" Jnoremapidlythan the Slots 1.5:] (louse quently, when the/slides are totally .dis-

placed aILth'ee hhtters are disposed at ri it" angles to the surfaeehf the rad ator. T 1 153 arrangement permits a-partlal displacementi a of'jthe upper ahutters i' without the (lidplacementiofthe lowershutters 7." 'lIncon sequenoeyair isallowed. tojc'ircuhlte thro1i h.

the upper rows of'ellsc'in the radiatoflwhl e air isprevented from clrculatnlg 1n the lower row of cells. Therefore, there will ".be more radiation in 'In summer, when a'perfectradiationis deshutters are disposed at sired, all'of the I right angles to the surface of the radiator,

' thereby leaving the cells unobstructed. Furtion, inoperative, as sliding block thermore, in such position they will diating surface of'the radiator.

The movement ofthe slides '13. is controlled by a sliding block, preferably mount- Y ed on the radiator and connected to theslides bylinks 20 which are also pivoted By moving the block 19 up the slides" are causedt'o descend. An initial displacement will causethe operation of the shutters engaged in the arcuate slots 15 until the extensions 1 2 engaged in the slots 16 of the slides come into engagement with the con-' tinuous side 18 of said'slots. By locking the sliding block 19 in this position by means of a butterfly screw21, the u per shutters will. be retained in a partiall while the lower shut-ters will remain shown infFig. 2. If the 19 is moved so as to totally displace the slides 13 upwardly all-the shut- ,ters will be opened. The block 19 ma be f the made to be operated from the seat 0 driver ifso desired,'but"this, not formin .whe're'bythe shutters are actuated, certain of said slots having an angular extension part fof theinvention, is not illustrated. a

I claim: I 1. A n air draft'control for cellular radiators of motoryehicles, comprisin a plurality of shutters row; of cells,

each adapted to 0 struct a slides having said shutters, means for operating the slides whereby said slides have initial displacement relative to the shutters en aged in the slots. having the extension, sai

the extension being adapted to displace the shutters engaged therewith more rapidly than the other slots, whereby all the shutters can be fully-displaced. J I

slots hava 2. An airdraft controljfor' cellularradi-, ators of motor vehicles comprising, a plu rality of rectangular-shuttersdis transversel'yof the radiator, each -o said sh'ut Haters being hinged at its vupperedge along a horizontal row of cells,

a-slide having diagonal slots open at the edg ispesed along the ends'of the-shutters, eachii said shuttersh-av-ing an extension aging a slot in en the slidei theslots in the 'slid es engaging the I so a having" an angular 'ex'tensi'n shutters in the lower halfjof-"the rad ator slides have an initial displacement relative to the shutters in thelower half of the radiator, the angularity of said slots having an.

extension being such to cause a more rality of rectangular transversely of. the radiator to cover the increase the .ra- I of said slides upwardly h y p p s slots engaged by I and means radiatorwhereby the whereby said through the cel s,

rapid displacement of the shutters engaged I therein than that of the slots engaging the shutters in theupper half of the radiator, and means for actuating said slides.-

3. An air draft control torsof motor vehicles comprising,- a plushutters disposed horizontal rows of cells, means for hin said shutters to the radiator, mem rs mounted to slide on the radiator along the ends of the shutters,'said members having diagonal slots, each of the shutters having an extension at the end. thereof engagin a slot thesslots en in the upper hal being arcuate, while those engaged by the lower half are, straight and ave an, angular extension to allow to] said for cellular radi'aged by the shutters lying membersan initial displacement relative to I said shutters in'the'lower half of the radii.


such an angle as placement of the than that .caused shutters. in the lower half by the arcuate slots, and

means for actuating said members.

4. An air draft control for cellular radiators. of motor vehicles, ralityof shutters adapted to cover the','horicomprising a plusaid slots in the lower half being atto cause a more rapid diszontalrows of air cells, members mounted to slide on the radiator-along the ends of the shutters, said members having slots, each of the shutters having an extension engaging'a slot,the slots engaged by the extensions of the shutters lying in the lower half of the radiator having an angular extension, permitting to said members an initial, dislacement relative to said shutters in the ower half, and means for actuating, said- I in predemembers and retainin the same termined positions, sai slots having the ex tension having an angularity such as to displace the shutters engaged therein more rapidly than the shutters slots without the extension.

5, An alr-draft control for cellula -556i ators of motor vehicles compri g, a Pinrality of horizontally-disposed utters for obstructing V for "operating said utters, including means for initially displacing the shutters disposed in the upper half of the u per half of theshutters may be partially displacement of the lower half of the shutters, said latter means including means for d placing 6. Anair-draft control for cellularators of motor vehicles comprising, shutters for obstructin engaged. in. the

the air flowing through, the'cells,

lsplaced without the shutters, said latter means being adapted to displace the other I the shutters of the lower half rapidly than the shutters of the upper 1 for obstructing, the circulation of throufih the cells, and operating means for shutters not initially displaced more rapidly to'fillly operate all of the shutters. An air-draft control for cellular radiators of'motor vehicles comprising, shutters for obstructi the circulation of air through the oe s, and means for operating all of said shutters, including means for initially operating some of the shutters.

8; Anair-draft control for cellular radiators of motor vehicles comprising, shutters air initia displacing some of said shutters andadapted to displace'the other shutters not initially displaced more rapidly to fully operate all of the shutters;

v 9. An air-draft control for cellular radiators of motor vehicles comprising, a phirality of shutters oach adapted to obstruct a row of cells, slides engaging said shutters for operating the same, includin means giving to said slides an initial disp acement relative to some of the shutters, said means adapted to displace said shutters reiative to which said slides have an initial displacement more rapidly than the other shutters whereby all of said shutters may be fully operated by the displacement of the slides, and means for actuitin said slides.

In testimony-whareo I have signed my name to this specifi :ation in two subscribing wi'nesses.



the presence of

Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US2751154 *Oct 20, 1952Jun 19, 1956Eric Georg PetersenShutter mechanism
US4706461 *Feb 14, 1986Nov 17, 1987Navistar International Transportation Corp.Ambient air modulator for engine fluid heat exchanger
US4916902 *Aug 17, 1987Apr 17, 1990Pratt Howard LAmbient air modulator for engine fluid heat exchanger
US8327811 *Jan 19, 2006Dec 11, 2012Yanmar Co., Ltd.Rotary working machine
US8915320 *Oct 13, 2011Dec 23, 2014GM Global Technology Operations LLCVariable actuation rate shutter louvers
US20100126440 *Jan 19, 2006May 27, 2010Yanmar Co., Ltd.Rotary Working Machine
US20130092462 *Apr 18, 2013GM Global Technology Operations LLCVariable actuation rate shutter louvers
U.S. Classification165/98, 123/41.4, 165/DIG.980, 49/77.1, 105/62.2
Cooperative ClassificationY10S165/098, F01P7/10