US 1507462 A
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Description (OCR text may contain errors)
Sept. 2 1924. 1,507,462 J. L. CHILDERS ET AL VENTILATQR Origiwl Filed Oct. 8. 191a fix .1. (fix)? 2.
WWW J. Lam-23225 a Q Q k flrZawcL Patented Sept. 2, 1924.
" UNITED Sm JOSEPH LOUIS en neasaap rmnnmairmen, or semi) SPRINGS,- OKLAHOMA.
a ienate-i611 :meaocfiaters, 191s; SeriaI NO. 25142.2( Renewed May 10, 1924-.
To all whom it may come m:
Be it known that we, JosnPH Louis CBILDERS and FREDDIE ARLAUD, both citizens of the United States, residing at Sand Springs, in the county of Tulsa and State of Oklahoma, have invented new and useful Improvements in Ventilators, of which the following is a specification.
This invention relates to ventilators, the objectbeing to provide a ventilator of the rotatable cowl type, in which there is employed a fan operated by the wind producing a suction for the purpose of drawing the impure air from the interior of the building.
A further object of the invention is the provision of novel means for directing the wind to the blades of the fan so as to obtain a maximum of efficiency, thereby producing an increased suction, the said means consisting of a hollow conical annulus which surrounds the fan and the entrance opening of the cowl and due to its shape produces an increased draftwhich acts upon the blades of the fan.
Other objects and advantages of the invention will appear as the following description is read in connection with the accompanying drawings.
In the drawings Figure 1 is a vertical sectional view through a ventilator embodying the present invention;
Figure 2 is an elevation looking in the direction of the travel of the wind.
Referring to the drawings in detail, like characters of referencev denote corresponding parts throughoutthe several views.
In the drawings there is illustrated a stationary pipe 10, which may surround a I suitable opening communicating with the interior of a building. Mounted to rotate from the pipe 10 is a cowl 11, which includes a short vertical section 12, an inclined section 13 and a short horizontal section 14. The section 12 receives the pipe 10, which latter extends within the said section a short distance so as to provide a suitable joint and to permit of the rotation of the cowl. cally disposed preferably hollow. shaft 15,
which extends downwardly and enters a pipe or housing 16. This pipe or housing encases the lower portion of the shaft 15 and is provided at its upper end with a reducer 17 which acts as a bearing for the Secured within the cowl is a verti- I shaft at this point. The lower end of the I pipe 16 is threaded for the reception of acap 18, which together with a cap 19 located upon the bottom of the shaft 15 and a ball 20, provide an anti-friction bearing for the lower end of the said shaft. Threadedly mountedupon the pipe 16 is a lock nut 21.
- The section 14 of the cowl 11 is provided at its open end with a spider 22, which together with a bracket 23 carried thereby, form a bearing for a fan shaft 24. The fan is mounted upon the outer end of the shaft i 24 anduponv the outside of .the cowl and includes .a ball bearing hub 25 and fan blades 26, the latter extending beyond the periphery'of the section 14 of the cowl. The blades 26 are notched as shown at-27 and the extremity of the open end of the section 14 extends Within these notches.
the annulus is of hollow conical formation,
the restricted end extending outward beyond the open end of the cowl and the ends of the blades 26 havetheir ends inclined, to conform to the shape or inclination of the Walls of the annulus.
Mounted upon the cowl and upon the annulus 28, is a vane 30, which acts to hold the cowl in proper position, so that the fan will receive the force of the wind. Also secured to the cowl upon the side opposite the fan, is a counterbalanced weight 31,
which acts to balance the cowl upon its.
shaft or pivot, so as to permit of free rotation.
It will be apparent, from the foregoing description when taken in connection with theaccompanying drawings, that the Wind passing through the annulus from the enlarged end to the reduced end, will cause a draft or action upon the blades of the fan and the rotation thereof will be greatly increased.
The invention is susceptible of various changes in its form, proportions and minor details of construction and the right is reserved to make such changes;
Having described the invention, What is claimed is:
A ventilator of the-class described comprising a stationary base, a cowl rotatably mounted on thebase and including a horizontally disposed port-ion, a spider secured Within the horizontal portion and arranged adjacent the open end thereof, a bracket projecting inwardly from the spider and providing a bearing, a shaft rotatably mounted in the bearing of the bracket and extending through the spider, a fan carried 10 by the shaft and having its blades notched to accommodate the edges of the horizontal portion, means surrounding the fan for c01- lecting air therefor, and a counterbalancing Weight carried by the cowl as and for the purpose specified. I
In testimony whereof We aflix our signatures.
JOSEPH LOUIS CHILDERS. FREDDIE ARLAUD.