US1458348A - Disappearing electric-fan mechanism - Google Patents

Description

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`in@ application for Patented .lune l2., i923.

DISAPPERNG- MECHANISM.

' Application filed J'uly 3l,

To all inkom it met/'concertar l Be it known that l, (lamanon W. lin VnLLE, a citizen of the United Statesj-residing at lllichita, in the county of Sedgwick and State of Kansas, have invented certain new andv useful' lmprovements in Disappearing .Electric-lian Mechanisms, oi: which the Jollowing'is va description, referring to the drawingswhich accompany this specification. A

The invention relates to that'class of electrical ceiling fans as described in my pendb Letters latent,r tiled March 6, 1922. Serial No. 541422 and 4in which both the fan properand its motor are mounted upon and supported. by a pipe suspended from a-ceiling, beam or the like, ln the class of tan referred to in my pending application and to which the present application closely relates, the fan blades are through spring controls rendered invisible by concealment with the mechanism; thus they vform a more suitable and more beautiful fixture than `fans which are'permanently in view.v Electric lighting sockets may be affixed on the mechanism as readilyA understood; thus one ceiling opening will serve Jfor fan and lighting purposes it' so desired. Y l In theprevious Jfan constructions of this character, the centrifugal action of the fan' and the spring controls. did not always function the same for each unit Jian blade; in the present invention this objectionable feature is fully discussed and means provided whereby a coaction occurs and continuously exists between the several unit .tan blade assemblages and whereby all the blades present themselves simultaneously for fan action. and similarly fold within the mechanism for concealment when not in action. This principal feature of the invention will be most readily understood by reference to the accompanying drawings in. which Fig. l shows a top plan view of the motor and showing the radial mechanisms on which pivot the unit tan sections; and the combination effected by the unified wire control oi the several parts. Fig. 2 vshows a plan view of a radial bracket element. detached and with the wire connections made thereon. Fig. 3 is a side view ot Fig. 2 without the wire elements. Fig. 4 is a pespective view of a stop element seen in Figs. 2 and 3. Fig. 5 is bottom view of Fig. 3 to show the spring mechanism Jor effecting desired anni. trice.

1922. Serial No. 578,763.

spring controlled movements. Similar numerels oi? reference indicate corresponding parts throughout all the ligures of the drawin Referring to the drawings, the fan vfixture support consists ot' a tubular hanger l suspended from a ceiling (not shown); This hanger l. is the nonrotary shaft oi the motor which is oli the revolving vheld type such as is customarily employed in similar installations. The upper and lower canopies as carried by my similar illustration in the pendin,9.` application above mentioned are not in this invention illustrated since they YForm no specific function in the present in-l vention, but mention may be properly made to the .tact that when employed the blade eleiiientalater disclosed. operate to open outwardly or told inwardly between such canopies and against the motor when folded in.

niet-al ring 3 is rigidy with the frame of the motor 2 and is driven thereby. A plurality ot. bracket members e, are `rigidly affixed at spaced. intervals upon the'periphery o? the ring Flach member 4 receives a screw element 5 'et a stationary circular member 6. The member 6 is providedwitha vertical shaft 7 upon which thec'ap element pivotally moves.r An arm element 8 `outwardly projects trom the member 8X. A Jfan blade 9 is rigidly attached. in the finished4 mechanism'to each arm element 8. Only one blade 9 however is shown in Fig. 1 for convenience of illustrationl but it is to'lbe' understood that each arm8 is provided with such a bladey 9.

The stop element shown iny Fig. 4isa curved plate l0 with an upper cut away p0rtion ll. to provide shoulder l2 as'illustrated. The screw lf3 when backed oil' permits the' plate .l0 to be moved to a desired position. the screw then is screwed down so that its head presses down upon and retains the stop l0 in proper position. Roller or ball bearings may be used in conjunction with the pivoting mechanism within the parts et the cap n'iember 8x and the stationary member 6. Thus it will be seen that each can member 8X will pivot outwardly under centrifugal torce to the position illustrated for each as seen in Fig. l and to a Contact with the stop lf2. Thus each blade 9 ci nroper curved. and warped configuration in tunctionable operation for fan PUTDQSGS.

Now in order that there may be a simultaneous `folding of the blades inwardly against the motor when it' is inoperative, the blades are hollowed out as at 9x so that when movement of thevblade inwardly is "oc `z`as`ioned','V

shown by the dotted arcthe arms 8 also fol-A low their dotted. arcs similarly so that each hollowed portionbl'ade portion 9X will member around the motor 2.

[In'gorder that each blade will'be in the same proper position as every other blade of the assembly at each instant of loperation or closure, I, in the present invention, link the several elements 8X togetherso that when one moves, all move a corresponding degree, thus "each blade 9 similarly imoves justas its.

companion blades do. The spring 13 normally tends to draw its blade 9into the folded positionagaiiist the motor, or to a contact by a part 8x vwith thestop 12. Butv each spring might not exert the same tension for this movement hence by the linking together allot the parts, allspringswill work infunison; similarly all blades` might not move justas fast to assume their outwardly thrown position, so that the linking together Aexerts a 1&1v engagesfaround'all the cap" elements `8".

Each cap elementhas two binding posts'or i screwsv 15, 16;.th'e cable 14 leading as at 111x around to the Lpost 15, thence backto the post y16 thencel outwardly 'as at lay.

are .properly spaced to permit of'suflicient lap oi the cable elements so that a pull .from eitherfdirection Will cause a proper tendency 'i of thecapmember 8x to pivot. It will thus be seen that since the cable la engages all posts 15 and 16v of the assemblage, that each blade lelementmoves both in or out with its companion blades and simultaneously theref with.

[Various modificationsy may be employed as lier y within the scope of thev appendedl claims. Having fully disclosed my invention what I now claim as new and desire to secure -byLetters Patent is;

\ In a motor driven fan, a motor having a vertical axis, a rotatable element concentric 7 properk control so-th'at they must so I, functiom y n y l Referring to Figs. 1 and 2 a wire or cable The posts` with-said axis; aplurality of radialelerneiits on said element eachl radial element having pivot-able elements and linking means vfor uniting said pivotable elements for siiniiltaneous pivoted movements. l

2. In a motor driven fan, a motor having a v'vertical axis, a rotatable element concengl tric with said axis :,a plurality of radial elementson'said element; each radial element including a blade carrying an element piv- .otally mounted onl said radial element and .a cable means engaging around and .to

each. `blade carryingelement. for unii'ied con#v trolled pivoted movements.

. In a motor driven fan, a motor having ar vertical axis, a rotatable ring concentric with said axi/sf; `a plurality of bracket eleymove on elements'carried by saidv bracket member, an armV rigid with said capmem` bei', means on thecap forllimiting lthe amount ofpivoted movement in either direc# 'tion by its contact at spacedpivotedpositions with said stop element, a fan blade on said arm; a cable leading toma binding post Q11 said cap element, thence backwardly` to .another post on said cap element,thence outments radiallydisposed `from said ring; each j V Wardly to a similar connection inturn withv each other `cap element and to avconii'ection from ythe' point of beginning, and whereby any pivoted movement of onefan vblade ele`r mentv isl simultaneously, transmitted 'to eachv and l,every other fan blade element s o-'that a unified and controlled'pivoted movement of lall fanbladesis had for the purposesfoi the invention.

CLARENCE wf. Ln vEnLn. i

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