US2325425A - Air translating apparatus - Google Patents

Description

July 27, 1943. L, s, R E 2,325,425

AIR TRANSLATING APPARATUS Filed Feb. 5, 1941 2 Sheeis-Sheet 2 29 Q7 i x f INVENTQR LAWRENCE 5. REA/D5441 BY v ATTO Y screws 26.

Patented July 27, 1943 ENT- OFFICE-A AIR 'r-nANsLA'nNG APPARATns Lawrence's. Riendeau, Springfield, Mass; assignor to Westinghouse Electric & Manufacturing Company; East Pittsburgh, Pa., a corporation of Pennsylvania .A t

Abpiieauonresnrary 5, 1941, Serial No. 377,424 I 50l'ai1ns. (01. 230-256) This invention relates to oscillating electric fans and it hasjror an object to provide improve'dapp'arat'us of 'this type. f I A further object is to provide an electrician of this type which is ru ed and economicalto manufacture. l

A further object is to provid e an" electrician of this type having anintegral swivel pin and motor ousing assembly. A

A fur'ther object 'is toprov'ide an economical motor housing andswivel pin assembly for fans of this type. that requires no'expensive machin'ing operations. v A p A The above and other ob'jectsare effected'by my invention as will be apparent from the 'following descripnbnana claims taken inconnection with the accompanying drawings, forming a part of "this applicat'ion, in which: Fig. 1 is a side elevational view, with parts brok'eh' away for th'esake of cle'arness, ofja tan embodying this invention: A

Fig. 2" anfelevational View showing apart 'jbf them'otorho'using withfthe swivel m attached thereto;- i

Fig. 3 is a partial sec'fmnal 11m; IIL-III or Fig. 1; Fig. is a pa 'r'tjial sectional line IV"-IV-f Fig.3.; and r A Fig. is a partial sectional view taken along ie aka w e view taken along The motor I 0 is fastened 'in'th'e shell 2 "by bolts which pass through apertures 29, shown in '2, or by any other suitable means. ThemOtOI' has a shaft 2'] which extends through the shell 12 of the motor housing and to which the fan blade 14 is attached by means o'f'a set' screw 22.

The fan guard I6 is attached to the shell 12 by means of screws 23,

The oscillating mechanism His driven from the end of the motor shaft '2ljwhich is opposite the -fan blade lla'nd is housed in the shell l3. A clutch knob 24 extends through the shell T3 for 'ad'justing'the oscillating mechanism to oscillat-ing or nonoscillatingpositions T'I'his knob 24 is connected to the oscillating mechanism by means of a; sliding lit and ma be readily removed whenever "it is desired to disassemblethe fan. The shells T2 and I3 are fastenedtogether .A A es A The shells l2 and I3 are die cast and the shell 12 has a chamber-like construction located substantially in the bottom portion thereof, said chamber-like construction being defined by oppositely-disposed side walls 21 and 28 and oppositely disposed end walls 29 and 30, A' swivel pin 32 is first formedof steel, or some other suitable metal, then the pin 32 is attached to the shell I2 by die casting oneof its ends into the walls Hand 28 of the chamber construction. A box-like web having side walls 33 and end walls 3l' extends between the walls 21 and 28 of the chamber construction to reinforce the swivel pin mounting and make the assembly more rugged. The pin 32 is cast through this web and the metal of the web entirely surrounds the pin. The pin may be knurled as at 34, Fig. 4, to insure a better bond between the pin and the metal of the web. A boss 36 is formed on the swivel pin 32 adjacent the under side of the wall 21. By casting the swivel pin 32 integral with the shell (2, no machining operations are rethat they m'ay'also be formedof molded, mate- 'rial, such as a plastic, and the pin 32 molded into the walls 21 and Z8 of 'th'e chamber construction. r A

The support '18 includes a base 33, to which a switch 39 for turning the fan motor on and off is attached, and a leg '40; the end of which is bifurcated to provide a slot 4| in which the pivot member I! is mounted. Conductors 42 are provided for connecting the motor to a suitable source of power.

The pivot member whichpermits the fan to be tilted to different -angles, is p'ivotally held in the "vided for clamping the fan in the desired til-ted position with respect to the base 38. member Ffhas an aperture 45 therein for receiving the -swivel pin '32 and a larger aperture 46 The pivot at the top in which a ball bearing '48 is 'posi tioned. The ball bearing 48 isof the convention- 'al type having an outer race and an inner race and ballsjin between the two races. having a tongue 5 l which fits in a recess 52 in A collar 5'9 the pivot member H is clamped to the pivot member by a set screw'53. The collar 5% serves to retain the ball bearing 43 in position in its 'jseat in the top of "the pivot member. A retaini I ing'ring 54 is positioned in a groove in the swivel pin 32. The ring 54 abuts against the inner race of the ball bearing 48 and serves to prevent the swivel pin 32 from being Withdrawn fromthe aperture 55. The boss 36 rests on the inner race of the ball'bearing 48 and serves to transmit thrust forces to the ball hearing;

The collar 5i] has a stationary pin '58 formed integrally therewith by the same operation that forms the collar. This collar may also be die cast or formed of some suitable molded material The pin 53 extends through such as a piastic. an opening 59 in the lowerwall 2'! of the chamber construction described above and projects into the chamber. A connecting rod 68 is connected at one end to a revolving eccentric 62 carried by the oscillating mechanism 1 l, and the other end extends into' the chamber construction and is connected to the stationary pin 58. a If it is desired, the pin 58 may be, extended through both the lower wall 2 'i'and the'upper wall 28 of the chamber construction; his arrangement would insure against the connec't ingirod jumping off the endof the pin 58. 1 I

When the fan' m'otor rotates "the eccentric 62 is also'rota ted if the clutch knob't l isadjuSted to"oscilla'ting position, and because one end of the connecting rod 59 isfheld stationary bythe pin'EB, the fan structure which is attached to the shell I? of the motor ho'usi'ng'ispscillated back and forth onithe swivel pin 32 in a manner that is well known in the art.

In some prior art devices" of this type 'it' has been the practice to attach'the swivel pin to a single, wall of the motor housing. This assem"- bly is not entirely satisfactory because after continuous vibration'ov'or a period'of time the single continuous vibration over a long period of time since the swivel pin is anchored at two spaced points along its length. The web defined by the walls 31 audit? provides additional reinforceme-nt for the pin mounting andinsures'that'the fan will'hot tiltdownwardabout the-swiv'elpin. 0; From the foregoiiigdescription takeni-n connection' with'the accompanying drawings, it, will be seen that this invention has provided animproved oscillating electric tan which is rugged and economical to manufacture. a It will also be seen that the swivel pin is'integrallyjattached to the motorhous'ing and that the motor housing and swivel pin assembly requires a minimum of machining in order to assemble] r While I have shown my invention in but one form, it will be obvious to those skilled in the art that it is no-tso limited, butiis susceptible of various changes and modifications without departing from the spirit'thereof, and I desire,

therefore, that only such limitations shall be.

placed thereupon as are specifically the appended claims.

What Iclaim is: t I 1. In an oscillating fan, the combination of a motor housing including-a structure comprising set forth in .two spaced-apart opposite walls, a swivelpin in-' tegrally attached to said motor housing, said swivel pin extending between and being con-' nected to said two'spaced apart opposite walls of closure formed by the walls of said structure, an oscillating mechanism, a connecting rod extending into the enclosure formed by the walls of said structure and connecting said stationary pin to said Oscillating mechanism, said structure serving to provide rigidity for said motor housing and swivel pin assembly and also providing .a housing-for the stationary pin and the connecting rod.

2. In an oscillating fan, the combination of a motor housing including a structure comprising spaced-apart opposite walls forming a chamber in the lower portion of the motor housing, a swivel pin integrally attached to said motor housing, said swivel pin extending between and being connected to two opposite walls of said chamber, a boss 'formed integrally with said swivel pin adjacent the outside of one wall of said chamber, a support for said fan, a pivot member attached to said support, said pivot member havingan aperture therein for receiving said'swivel pin, a bearing for said swivel pin carried by said pivot member, said boss serving to transmit thrust forcesto said bearing, means retaining said bearing in position on said pivot member, and means retaining said swivel pin in the aperture in said pivot memberr 3. In an oscillating fan,'tl1e combination of a motor housing including a structure which comprises spac'ed-apart oppositewalls forming a chamber in the lower portion of'the motor housing, a swivel pin integrally attached to said motor'housing, said swivel pin extending between and being-connected to two opposite walls of said chamber; an oscillating mechanism,a support for said fan, apivot member attached to said support, said pivot member having an aperture therein for receiving said swivel pin, a bearing for said swivel pin carried by said pivot member, means retaining said bearing in position on said pivot member, means ret'aining said swivel pin in said aperture, a stationary pin projecting from said pivot member and extending through an aperturein one wall of said chamber andprojecting into said chamber, a co'nnecting rod connecting said stationary pin to said'oscillating mechanism, said chamber providing rigidit for said fstr'ucture, a stationary pin", projecting through one wall of said structure'into the ensaid motor housing and swivel pin assembly and also serving as a housing for said stationary pin and said connecting rod. I

1 '4; In an oscillating fan, the combination of a motor housing including a' structure which comprises spaced-apart opposite walls forming a chamber in the lower portion of the motor housing, a swivel pin integrally attached to'said motor housing,- said'swivel pin extending between and being connected to two opposite walls of said chamber, an oscillating mechanism, a support for said fan, a pivot member attached to said support, said pivot member having an aperture therein for receiving said swivel pin, a bearing for said swivel pin carried by said pivot member, means coacting between said bearing and said pivot member for retaining said bearing in positron, means coacting between said bearing and sa d swivel' pin for; retaining said swivel pinoin said aperture, astationary pin formed integrally with said pivot member and projecting therefrom and extending through an aperture in one wall of said chamber and'projecting into said chamher, a connecting rod connecting said stationary pin to said oscillating mechanism, said chamber providing rigidity for said motor housing and swivel pin assembly and also serving as a housing for the stationary pin and the connecting rod.

5. In an oscillating fan, the combination of a cast motor'housing including a chamber in its lower portion, said chamber being defined by spaced-apart opposite walls, a swivel pin, said swivel pin extending between two of said spacedapart opposite Walls of said chamber and being attached thereto at spaced points along its lengths by casting the same into said walls, one

wall of said chamber having an opening therein,

a stationary pin projecting through said opening 10 and into said chamber, an oscillating mechanism, a connecting rod extending into said chamber and connecting said stationary pin to said oscillating mechanism, said spaced walls of said chamber serving to provide rigidity for said motor housing and swivel pin assembly and also providing a housing for the stationary pin and connecting rod.

LAWRENCE S. RIENDEAU.

Images