US1750681A - Blower - Google Patents

Description

C. T. MORSE March 18, 1930.

BLOWER Filed Sept. 22, 1927 4 Sheets-Sheet 1 INVENTOR CLARK 1. MORSE March 18, 1930. c. T. \M-ORSE, 1,750,681

BLOWER Filed Sept. 22, 1927 4 sheets-sued Fig, 5.

11v VENTOR CLARK 'ITMOR E,

A TTORNE Y6 March 18, 1930. c, MORSE 1,750,381

BLOWER Filed Sept 22, 1927 4 Shetg-Sheqt- 3 11v VENTOR CLaRK I MORSE,

ATTORNEYS March 18, 1930. c, MORSE I 1,750,681 I BLOWER Filed Sept. 22, 1927 4 SEEMS-$316M 4 11v VENTOR CLERK I Moms,

ATTORNEVJ named Mar. 15, 1930 UNITED STATES PATENT oar-lea cum! 1'. atom or nn'rnorr, moment, assroizoia, BY nasim assrcmumnrs, 'ro Amman nnowna conronarron, or nn'rnorr, mrcmcm, a conroaa'non or DELAWARE BLOWE- Application flled September 28, 1927. Serial No. 821,875.

My invention relates to blowers. 7 It is the object of my invention to provide a rigid, quickly assembled, noiseless blower construction, which will eliminate all castl ingscustomarily employed in blower constructions, and which will eliminate all noise due to the vibration of the fans and motors.

It is a further object of my invention to provide a common means for supporting the blower housing and the motor and fan in such a way that themotor and fan, while supported from a common support with the ousing, will not touch the housing nor communicate the vibrations thereof thereto.

It is a further ob'ect tov rovide means of easily and quickly, etacha ly, mounting the motor with respect to the fan shaft, and resiliently supporting it in position so that the fan and motor will be properly balanced.

Referring to the drawin s: V

' Figure 1 is a side elevat on of the blower from the motor side;

igure 2 is a side elevation from the inlet ,FigurcB is an end elevation on'the outlet F Figure 4 is a section on the line 4-4 of igure 5 is a detail end elevation of the attaching mechanism of the motor to the supporting frame;

Figure 6 is a side elevation in detail; Figure 7 is a section illustrating the mount ing of a bearing and ulley for supporting and'driving the shaft instead of the motor; Figure 8 is a side elevation of Figure 7 Figure 9 is a similar view showing the rigid supports instead of the flexible suprts Heretofore, it has been the practice in the construction of blowers to provide a metallic casin the sides of which are either complete y or very largely composed of heavy castings, one of which forms the lip and rim adjacent the fan for the directin of air to or from the fan, while the other 0 the heavy castings served as a bearing support for the fan shaft and served as a motor support either directly or through attachin brackets. Thus, the motor and the fan were directl as sociated with and mounted upon the drumlike structure of the fan casing. This resulted in very considerable weight. The castings were expensive and, in large size I blowers, diflicult to handle because of their weight. This necessitated heavy freight charges and, in operation, the vibration of the motor and fan was directly conveyed to the blower casing and housing. In assembly, much time and labor was lost due to the complicated assembly operations between the sheet metal and casting portions ofthe blow or as well as between the fan and motor installations.

With this understanding of the prior development in the construction of blowers, the novel and advantageous features of my invention will be understood.

Iselect a scroll casing of sheet metal designated 1 having turned over edges 2 which are U-shaped in cross section.

I then take a side plate, such as 3, and by two operations form a flange 4 and an opening- 5. Adjacent this flange 4 I bolt with the bolts 6 an inverted U-shaped horseshoe supportof angle iron designated 7 the feet of which 8 rest upon the ground or any other support.

The other sidewall 9 has an inwardly V formed'flange 10, but as I do not out out this side wall, the bottom 11 of the cup-shaped depression thus formed remains position.-

Asimilar U-shaped angle iron support is mounted adjacent this cup-shaped de ression of the side wall 9 and is desi ate 12. A cross member 13 serves to furt er brace this inverted horseshoe reinforcement.

One opening for the blower is at 14 and the other opening is through the flange 4 and the passageway formed thereby.

The fan itself is designated 15 and is mounted upon the fan shaft 16, which is also the armature shaft of the motor 17. This motor is'suspended by flexible plates 18 pref" erably formed of rubber and fabric. These plates are wedge-shaped. They are bolted by the bolts 19 to the motor on the motor bracket 20 and by the bolts 21 to the frame bracket y 22. The bottom 11 of the side wall 9 is cut away at 23 sufficiently for the passage of the to the shaft.

It will be noted that the whole structure is supported on the two horseshoe reinforcement members but that support of the motor and fan is inde endent of the support for the' casing. The exible resilient members 18 provide for the alignment of the motor, its

proper balancing and the absorption of all viration. Any motor of any size may be mounted, the width-of the fans may be varied utilizing the same supports: and side walls, merely varying the width of the scroll 1 The advantage of interchangeability of this structure'is evident from an examination of Figures 7, 8 and 9.

. resilientl The shaft 16 may be supported in a bearing 24 in the resilient supports 18 or in the rigid supports 25. This bearing can be mounted in the recess of the cup formed in the side wall while the pulley 26 is mounted beyond the bearing. Thus, the bearing is centrally located between the fan and the pulle and a-satisfactory balance can be maintaine It will be understood that amongst the variations of this arra'n mission 0 the use of a double inlet casing in connection with 'the fan, such fan being supported on either one or both sides an the motor being supported resiliently, if desired. Bearings can also be resiliently supported at one or both ends of the fan shaft either, with or without motors or pulle s.

It will be understoodthat I desire to comprehend within my invention such modifications-as may be necessary to adapt it tovaryin conditions and uses. a

V avin thus fully described my invention, what. I c, aim as new and desire to secure by Letters Patent, is v a 1. In a blower, a sheet metal scroll, sheet metal side walls, a fan within'the side walls and scroll, inverted, U-shap'ed, angle iron, re-

inforcing members mounted. .on said side -walls, a motor flexibly susppnded from one aving itsarmaof said U-shaped. su ports ture shaft' project through one of said side walls and the fan mounted thereon in such a manner that the unercasing of wbichthe mu is. a part,- one fan and armature shaft as well as the motor do not touch the side walls or the scroll.

ment in a construction permittin of a doub e inlet fan and the per-.

within said scroll:

1,7so,ea1

of said side walls having an inwardly turned flange adjacent an o ning communicating with the interior of t e scroll and the other of said side. walls being formed intoa depressed'cup-shaped portion with an o ning for receiving an armature shaft, a an, an armature ,shaft mounted thereon, a motor adapted to drive said armature shaft, U- shaped angle iron braces and supports mounted on said side walls, and means for flexibly and resiliently mounting said motor on one of said supports a 3. In a blower, .a scroll havin one end formed in an openin and the e es of the scroll turned over to orm U-shape grooves, sheet metal plates having their edges mounted in said grooves to form side walls of the blower casing of which the scroll is a part, one of said sidewalls having an inwardly turned flange adjacent an opening commumcating with the interior of the scroll-and the other of said side walls being formed into a depressed cup-shaped portion with an open-- ing for receiving an armature shaft, a fan,

an armature shaft mounted thereon, a motor of said su ports, within the depression ofone 3 of said si e walls.

4. In a blower, a scroll having one end i and the edges of the- .scroll turned over to orm U-shaped grooves,

formed in an open sheet metal plates having their edges mounted in said grooves to form side wallsof the blower casing of which thescroll is a part, one

of said walls having an inwardly turned flange adjacent an opening communicating with the interior of the scroll and 'the' other of said side walls being formed into a depressed cup-shaped portion with an o ening for receiving an armature shaft, a an, an armature shaft mounted thereon, a motor adapted to' drive said armature shaft, U

shaped angle iron braces and supports mounted on said side walls, and means for flexibly and resiliently mounting said motor on one of said sup motor to the support being arranged for ready detachability. F 1

In testimony whereof I aflix' my signature.

' CLARK T. MORSE.

2. In' a blower, a scroll, having one end Q formed in an openin and the edges scroll turned o'verto orm U-sha grooves, sheet metal plates having their ges mounted in said grooves to. form side walls of the of the rts, within the depression of one of said si e walls, said attachment of the

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