US2096123A - Ventilator - Google Patents

Description

, Sheets-Sheet J. H. M DER MEN T 'VENTILATOR Filed Aug. 21, 19:55

Oct. 19, 193?.

v LATTORNEYQQ,

Oct. 19, 1937. v J. HJMODERMENT 2,096,123

' VENTILATOR 1 Filed Aug. 21, 19:55 7 Sheets-Sheet e" I 2/ I INVENTOR.

v f JH WJJMWMJ. BY I 7 ATTORNEY;

Oct. 19, 1937.

J. H. McDERMENT VENT ILATOR Filed Aug. 21, 1955 7 Sheets-Sheet 7 &

INVENTOR. H. fizfl mw/ BY ATTORNEY. I

' Patented 19,

spamming assess amuse l This-invention relates toaventllatorand par.-

ticularly to that general type of ventilator shown in United, States Patent to Dexter. No. 1,611,005.

Broadly stated, the objector the inventiongis to .5 provide improved dam l' mounting and control mechanism. More specifically.an object is to provide a dampermounting-including a parallelogram linkage and a damper actuator comprising areciprocable element connected to the damper I 10 through a toggle linkage. g-A further objectisto 'provide formounting the damper on a parallelogram 'linka ein suchv manner that the damper I may be swung by the .above mentioned toggle link- 7 age to a position above the pivotmounting of the' l5 upper ends of the links lconstituting-the'parallelogram linkage. A further, object is to-provide improved actuating means for the above mentioned sliding bar, such mean emboib'in's a compound mechanism including, a' winding drum pulley go system connected in operativerelationwhereby to multiply the mechanical advantage of the actuating mechanism and at the same time providei'or straight-line movement ,of the slidable-bar and for-remote control from any desired position.

: Other and more limited objects will become apparent lromthe following description when read in connection with the accompanying drawings wherein Fig. 1 isa vertical transverse section 7 through a device embodyin the inventiomland corresponding substantially to the, section on the line l-' l of Fig; 3a; Fig.2is anenIarged detaiJ section corresponding substantially to the line of Fig 3; Figs. 3 and 3acohstitute a longi- M tu dinal vertical section-:through a. sufllciently large portion of the devicetoindicate the essen- Ltial mechanism it being understood that lthe mechanisms of Fig. 3a may be repeated indefinitely, only one latch mechanism. however, being I required for the entirelength; no matter of what tion corresponding substantially to-the line 4-4 of Fig. 1; Fig 5 is a fragmentary vertical section ,Fig. 8 is,a,fragmentary plan view thereof with 8 is a detail section corresponding to theline of Fig. '7; andFig; 9 is a fragmentary detail; sec tionvof a still further modified form, being canfined to a substitute for that portion of the actuating mechanism appearing at the lower right hand corner 01m 7. I 1

V By reference to Fig.1, it will beseentnatimy improved ventilator is applicable to,-for1example,

55s. building root indicated by the numeral It and a connected together by upper bight portio I extendingnsupportinggbars ,I Sare secured to the Y linksxlfl outside theedges of the'damper-"lt eilfc extefnt; Figs. 4 and 4axmake up a horizontal secv showing amodifled form of actuating mechanism;

portions-broken away; Fig. '7 1a-a;1'ragm'entary" vertical section of a furthermodiiledform;. 2l3 ig.

carrying upwardly converging sheetmetal ele, nents 'Jhhaving; their upper edgessec'ured togetheratintervals by bars I! extending -there I across and riveted theretoas well "asto bowslll j having lower portions,lyingalong'the elementsil. ii a jacent theiupper edgesof the elements bight portionao'f theelements ili mergesq legs thereof by flattened corners to .whic cured a ridgelroll- 4., Upwardly; and. o

bows J3 and providesu o for t el .of baflle elements which; are attached a lower edgesjtolthe elements i3 in vany; ui ble manner. As will be clear from Fig. 1,: ments I l terminate-in vertical portions I I which the outer edgesofadamper [8 are dapted' to rest. ,Secured tothe,dampergit ,and

ing thereacross atintervals are straps it; ends of which are pivotally connected lin I r a The upper ends of the :linkslfliare pivotedtothe',

bows n, as indicated; t 2l.-;-It "will noted Y iathatthepoints 2| are above hedamper l the same, is closed but. that the position tively removes the ssm links from heIpathoi':

no n a o lt e' ivo i t-$2 SRieIerring nowrparticularly, to,:Figs;; 3

,- and: 4 and .411; .it be seen; that ,certai .oi the I bar 23- are Y v ll .link w ch is connected by a suitable br to the-,bottpin of'the damper "l8,

vious that, by reciprocating; the slidl ar .the. linkage "can be caused to move, to the dott'e line position indicated in 3 a wherein lthe 40 damper" ispositioned above the pivot t 21'.

In Figs 2 to 4a I have shown a-form of-ac't, to

101 the sliding "bar 23" which comprises a. ile element 2 1 connected at. .to the bar 13 and tending tangentially, to a sec r-' and vertically extending portionsZpositioned-adup n e 1 the-damper and permits thei latterto sw a g;

' 01 s latch eleme' wardly to a. convenient position. r .n A'latch'means laprbvlded for the-bar P '23 in 5 position to'cause thedamper I. to mIcopen position. Such latchmay tnkethe form m mmmg element 43 carrledib'y some fixed ":parto! thedevlce aa, tqr example; one a m i bnly u a. connector lfor the egble 36 but also a'cmou'ntlng tornsh'eave '1! about which the cable extends andlrom whlch 1t Passes tonnath'et sheave l0 and'th ence downmcuntin bracket hichla' ln by'-'the1b'a'r 23 im'd ajc m receiving transverse member; 12. f This latch lsjelmllar that'shown in' my copengllnggeppllcatlon No. 727,306, filed May 24,193 1N 2,072,461, patented March 193'],v ind per to latch upcnwmotion o! the bar 28 to latch and the latch element engagement and is dismissed by in ation otthegelement ll alter the same does}no t per-9e formi. petrol this invention and fully described in, mysald 'copendlnl abpllcdtlomlt appearsiunnecemry' a 1 rererenwnumerm 'lndlc'ate 1 parts "im n ai'e common" to me form 'of'the lnvea'ztlon' jiur deecribed and wh'erelnthe modmed elementl ere indicated by bthe'rretere'nce chm-acme.-

be "seen-that -tlzelxlldlng bar 1 it ai eeve u dver'wl-i lch auesa-nex ble'element uI- wmeh lssecur'ed 'atbneend at the point; to and wane other endto' c'lmcket I v wheel llifat $he;polnt;* element 4 .adajat'ed togbe wound on drum ll $096,188" I n fup udl me mime o! reactlontmnamlttedthrw hthelmk In lieu ot the elements "I; ll, ll employ a 'post to whlchilreilecured I elements II provldedwlth journcleq in I a thresdedelementl I upon which an internally threaded, 51mm block 111mm 'Pmlectlon II to'whlch lakplvohlly {While 1 have shown 2mm pment ti; ct. my lnv'en tlon;

lt understoqd-thnt to the V detallco! the discloemebht' :with fihe splrltjend of the ma iehunbr 1. In A H n 1,- to

damper ndented for moving *puulel as we 0mm ma:m; mu

oomprmng mppcztlnc mum curled; walla. pflrlllel link;

andtc midway-cm} by z tatlbn' b! "the" mrocketiwheel ll 01' r'sprocket chain I l extexidlljztn a. position fer con'venientacceuf'lbe m I.

11y extendingmama mv spaced -ifiectedlmere 6o bracket I! 'and plvotslly 5 connected oiizh themeamnio:

enclfltp an actuatingmg latchlngges'lemh catedl i generally by r the urneral l1 emmy's'l is slldable on ma n w ounted on anyflxedelement. lot-milieu!!! mum to the 1 bu v-qia The element i'l' ttke-thc fdm shaned lemen't u mung-las gna n m and oucwagdlyby the lament Ilse Projection II k plvqt 'ed'dndthronchwhlch {t H yengeglngthecameto extent but not $0 a, sum'clently uestextent f'tq'mcterl'clly v m vnna v 02M mw' 1 b l v wn' ls lp on the d I n y W wi ngmennae along le ,the1orce; required z o tmzjndstuana mm. [L

galdnnkunonld portlng "means, n "cipl'ocgtlonina M Mm @v mmm in actuating relation to said damper, a flexible element connected to said sliding bar, a lever pivoted at a point fixed with respect to said first mentioned means, a sector-shaped drum carried by said lever and connected to said fiexibleelement in relation to be wound thereon, a pulley system connected to said lever radially outwardly of said sector and adapted to actuate the same and latch means for holding said damper in one position.

5. In a ventilator, in combination with means defining an opening, a damper adapted to close said opening, supporting means, a parallelogram linkage connecting said .damper with said supporting means, a slidable bar mounted for reciprocation in a direction substantially parallel to i said damper, a link'connecting said sliding bar in actuating relation to said damper, a flexible element connected to said sliding bar, a lever pivoted at apoint fixed with respect to said first mentionedmeans, a sector-shaped drum carried v by said lever and connected .to said flexible element inrelation to be wound thereon, a pulley system connected to said lever and adapted to actuate the sameand latch means for holding said damper in one position. p

' 6. In a ventilator, in combination with a damper and means defining an opening adapted'to be closed thereby, a parallelogram linkage mounting said damper with respect to said opening, a'bar mounted for sliding movement substantiallypare allel to said damper, a rod extending at'substan- I tially right angles to said bar, an actuating element movable longitudinally of said rod, a toggle link connecting said actuatingelement with said bar and means for moving said actuating element V longitudinally of said rod.

7. In a ventilator, in combination with a damper and means defining an opening adapted to be closed thereby, supports adjacent said opening, l a parallelogram linkage pivotally connecting said supports with said damper, asliding bar movable with respect to said damper, link means pivotally connecting said sliding bar and saiddamper, a flexibleelement, means connecting said element to said sliding bar, drum means mounted in fixed relation to said first means, said flexible element being secured to ,said drum means in relation to be wound thereon, means for causing rotation of said drum means, and latch means for holding said damper in at least one position.

8. In a ventilator, in combination with adamp er and means defining an opening adapted tobe closed thereby, supports adJacent'said opening; a

parallelogram linkage lying outside the path ofsaid damper and pivotally connecting same to said supports, a sliding bar movable with respect to said damper, a link pivotally connecting said bar and said damper, a flexible element, means connecting said element tosaid sliding bar in actuating relation thereto, drum means mounted in fixed relation to said first means, said flexible element being secured to said drum means in relation to be wound thereon, means for causing rotation of said drummeans, and latch means I for holding said damper in at least one position.

Jams 11. MoDERMENT.

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