US1617258A - Automatically-oscillating electric fan - Google Patents

Description

Feb. s; 1927.

J. F. LlSTER ET AL AUTQMALIICALLY OSCILLATING ELECTRIC FAN 4 Shee Filed Dc. v, 1925 ts-Sheet 1 'der Feb. 8,

J. F. LISTER ET AL AUTOMATICALLY oscILLATING ELECTRIC FANl Filed Dec. 7, 1925 4Sheets-Shel. 2

'Mlgalzzss .Feb 8 19,27 ".l. F. Lis-ren ET AL AUTOMATIC-ALLY OSCILLATING ELECTRIC Fa Filed DeG- 7.- 1925 4 Sheets-Sheet 3 y Fei. s, 1927.

A 1,617,258 y J. F. LISTER ET AL AUTOMATICALLY OSCILLATING ELECTRIC FAN 4 Sheets-Shes):l 4

JAMES RASER LISTER AND HoRA'c winns'MAnwooD; ofBi'fNHAMENGnAND,

ZAs'sztefivons'To VERITY'S COMPANY- AUTOMATIGALLYLOSCILLATING -ELECTRIG FAN.

Applicationxeiea December 7, v1925 semi No. 73,7%, and'in Great Brita-inf December -'13,1ia24.

Thefinvention relates toan automatically oscillating electric fan of the-'kind 'inwhichv Vthe fan oscillates in two planes 'simultaney'ouslyffroni' the drive of tlie-`fan wheel spindle through a speed reducing gear which drives'a crankarni orp'late andthroughY an Y oscillating mechanism provided between lthe 'crank a-rin-onfplate and a fixed pointfon a ffstationary fanf\supportY orithe surface to which Ythe 'fan -is applied,1` providing a fixed' Vabutineiit `-frcnnwhich the'oscillations are forced. A -coinbined motor casingt andl fan "bodyhasbeen mounted to rock'on'trunnions `of a EVfiamewhichlitself can 'rock 4on 'an axis. at right-angles lto the trunnions and the 'f fspeed of thefan' whelshaft hasA been geared downto veryfslowlyl drive a crank'farmoi' f plate.

1Theinvention. provides in this kind lfan simple"oscillatingniechanisni very'inexpenv A alltiines alfixture. Said combined' casing sive tto produce 'andf fit, veryfs'rn'ooth and {efficient in *actionf and distinctive byV a Ytelescoping` lneinebrl applied 'between'the crank arm Y -l-or? plate vandI afstati'ona'ry abutment? through which the combined-r oscillations l are jforced fronith'e'.` drive-fof the fanf `wheelr spindle. One', part of the-telescoping frnernber is aq- 1sleeve@andfthe oth'enfpart' 4is a rodl slidably Vand'abtatablyffengaging the lsleeve and `one lway.

'otherabutment'iwhile 'the other: part prefof these parts; preferably 'the"sl.eeve,is fiXed to the stationary mounting ofthe'fanor ff'erably `the"rod suitably connects Iwith rthe l' crank arm ori' plate.

v revolvef and lslide in the stationary part,` rthe featurefoffthe part;l held stationarydoeing *i -thatit L *isA fimmovable transversely o r P'side- Three-1 forms of f lthe- ;'invention 1 are reprefsentedby the accompanying drawings each `Y1de's cr1b1 =,d- -'have been previously' proposediin v 'fein-bodying the `saine essential ffe'ature narnely theffuse" of? `the 'telescoping member aforesaid between the crank arm t "ori plate and the fixed abutment.

f present invention.

Eigx 2 isf an-'elevationoff Fig. l at vrrightfang-ies.

Fig. "isa 'sidese'ctional elevation of a table orpedestal fan.

Idotted lines A. B,

The -itelescoping -meinfberftherefore 'comprises two parts aforesaid 'oneftoi befheld :stationary 1 andI the oth'erfto- Fig.4 is a'rearend view of a V'portion-of Fig. 5 is afdetail section lofl Figli 3 'oii'the Y Fig. v6 is a side 1sectional elevation-v of-xa further forni of=table or pedestalifan.

Fig: 7 Fig. 6. l v

'y' ne alltheig-ures of the,V difawings siniilar .letters of reference are used to indicate coi'- responding parts.

l/Vitlrf particular reference to Figs." liand 2 thecornbined motor., casing and Ifa'n-body is arear'endview of a. part'of y, 1,617,258 f f1-ENT eoeiflxce.

a 'through which-the] fan -wheel spindle Y c n Passes and Within which ity revolves is mounted by Opposite trnnnions a2; da; i-,` foci;

P011 OPPOS-teetrunnons d2, d?, ckjupn a bifurcated-.frame rigidly yhangingfiom ceiling connection f 'this frame` being at greaterjpart of--the-Qspeed reducingflgear is itted. "llheQwhold'of, the parts aforesaid are substantially balanced in the ordinary This'gear'V coniprisesa slnall worin-g of the fan V'Wheel spindle Q and continuously 4the ywormfa1 id--!`Inounted onf a sinall 'shaft being by a safety friction clutch' l 'which -opera-tes only' tdi-let'f-thev 'crank shaftrevolve Y f ffromfthe'gear -whentheoscillations ofV the fair are forcibly? ac'cident'allyJ stopped.

-Aiiniefeatareeheranbeiom; partial-nay yafan ofthe-kind to which the invention relates. 1 The yinvention-is the Ause between thefci'ank the -telescoping-men1ber is :ver-ci callyV formed iii-the cro-wn eZof the' stationary Vbfurcated frame e and :forms the abutment surface 'for forcingl the oscillations While vthe rodY ma slides and revolves Withinkthesleeve a Working lit and at its lower end x4 is jointedly connected tothe outervend 7020i the crank arm c which outer end may turn slightly about the axis of the crank arm. The inanner of joining the'lovver end 004' of the rod 003 to the crank arm end 702 is clearly represented by the drawings.

lt Will be clear 'from the foregoing that lthe telescopingv member u forms a simple yand most ethcient oscillating Amechanism fonfopposite trunnions c2,

coupling the crank arm with a stationary abutmentand thatwhen the fan Wheel spindle is driving the crank arm the telescoping member forces the Whole fan to oscillate on Within Whose branches the Vcombined motor casing andfan Abody a is mounted to rock The casing can rock on theV frame' Z in a vertical plane and the frame d can rock on the peg e2 in va horizontal plane. The frame d seats itself i on a thrustfb'all bearingect the base e.

rTher rod m3 of the telescoping member Vslidably and revolubly engages Vthe sleeve "002 and at its outer end mtjointedly connects with the outer end 7a2 of' the crank arm 7c which outer end A7a2 has a veryy slight axial movement on the crank arm.

The speed reducing gear fromY the `fan Wheel spindle c to the crank arm?" is sub# stantiallyv as before ldescribed that is to say the Worm g, Worm Wheel 71 Worm z' and Worm Wheel j drivin-g the small crank shaft jg.

The safetyV friction clutch Z isprovided between the crank shaft ,7'2 and the crank arm ,70.

1When the crank'arm is driven from the ffan Wheel spindle the rod :r3 of the telescopingmember x vvill revolve andslide Within the sleeve :r2 which being theA surface of an immovable` abutment will force combined oscillations of vthe fanabout tivo axes at rightangles.

Tithparticular reterence'to Figs'. 6 and 7a crank plate k is substitutedlor the crank 60 arm inthe previous forms and the rod zu* of Vthe telescopin'g member zu is rigidly applied thereto as a crank pin.l The other part ot' the telescoping member'v is'the sleeve m2 Ywhich is mounted touniversally rock ina musing m cfa rigidly built arm n Xed to project immovably from the upper end of the peg e2 of the supporting` base e of the fan. Except that the sleeve may rock in 4the housing it is otherwise immovable that is tovsav it is laterally immovable and forms the operative surface of the liXed lateral abutment from Which the combined oscillations are forced consequent upon the revolution of the crank plate. The Yrod m3 both slides andrevolves in the .sleeve from the revolution of the crank plate 76.

vExcept as just described this form olf oscillating tan is the-saine as the form Figs. 3 t0 5;

rlhe bifurcated frame Z rocks on the peg e2 ina horizontal plane andthe combined motor casing` and tan body a rocks jupon'the frame d in the vertical plane While the speed reducing gear from the fan Wheel spindle c comprises the Worm r/ on the fan Wheel spindle, the Worm Wheel z and spur pinions 2 and ,7'3 driving the crank plate shaft jzl on which the crank plate k is mounted.

Having noW described our invention, Awhat We claim and desire to secure by Letters Patent is l. An electrically driven oscillating -fan` combining a stationary support for the fan, a frame. mounted to rock upon said support in one direction only, a combined motor casing and tan body arranged to rocky upon the iframe at rightLangles to the rockingof the frame itself, a fan shaftrotatable in the casing and body,v a' cranlrrotated by the'fan Wheel shaft through a. gearing, andV a telescoping member comprising a rod and a sleeve'V slidably and revolubly engaging each Yother operative between the crank andthe stationary support for the tanto force combined oscillations of thek fan from the rotation of the fan Wheel spindle, Vsubstantially as described.

2. An electrically driven oscillating 'lian combining a stationary support for the lan, a frame lmounted to rock upon said support llO in one direction only, a combined motor casing and tan body arranged to rock upon the frame at right-angles to the rocking of the frame itself, a fan shaft rotatabley in the casing and body, ay crank arm rotated from thefan Wheel shaft through a gearing and a telescoping member I comprising a rod Vpivoted to the crank and a fixed sleeve carried by the support land With which the rod slidably andl revolubly engages in afmanner forcing combined oscillations of the fan from the rotation ot the tan wheel spindle,

VAsubstantially as described'.

3. An electrically driven oscillating fank combining a stationary support for the fan, a trame mounted to rock upon said support in one direction only, a combined motor casing and fan body arranged to rock upon the frame at right-angles to the rockingV of the frame itself, a fan shaft rotatable in the casing` and body, a crank arm rotated from the fan Wheel shaft through a gearing member comprising a rod pivoted to the crank and a fixed sleeve carried by the sup' port and which rod slidably and revolubly engages in a manner forcing combined oscillations of the fan from the rotation of the fan'wheel spindle, substantially as described.

l. An electrically driven oscillating fan combining a stationary support for the fan, a frame mounted to rock upon said support in one directionl only,'a combined motor cas-v ing and fan'body arranged to krock upon the frame'at right-angles to the rockingrofY the frame itself, a fan shaft rotatable in the casing and body, a crank arm rotated from the fan Wheel .shaft through a gearing` and Whose outer end may turn slightly about the axisvof the crank arm and a telescoping membercomprising a rod pivoted to the crank and a fixed sleeve carried by Vthe support i and which the rod slidably and revolubly engages inl a manner forcing combined oscillations ofthe fan from the `rotation of the fan Wheel spindle, substantially as described.

5.1An electrically driven oscillating. fan combining'y a bifurcated stationary support to hang from' the ceiling, a ring mounted to rockupon opposite trunnions of the bifurcated support a combined motor casing and fan body arranged to rock Within fthe ring at right-angles, a fan shaft rotatable in the casingand body, a crank Varm rotated by the. fan Wheel shaftv through a gearing, `a telescopic connection between the support and crank -arm and consisting of a rod pivoted tothe outer end of the crank arm -anda sleeve formed as a fixed partof the bifurcated stationary support to be enga-ged by the rod `With aslidableV andrevoluble engagement, substantially as described.v

in testimony whereof VWe have hereunto set our hand.

JAMES FRASER LisTEE. HORACE WiLL siviALLWooD.v

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