US1581911A - Means for cooling fan-shaft bearings of driers - Google Patents

Description

April 20 1926.

H. BOGATY MEANS FOR COOLING FAN SHAFT BEARINGS OF DRIER Filed April 14,

Patented Apr. 20, 1926.. v

HHZMANN BOGATY, OF lEI-IILADEIJEHIAy PENNSYLVANIA, AS SIGNOR TO PROC'IOR &

SCHWARTZ, INCORPORATED, OF PHIL TION OF PENNSYLVANIA.

ADELPHIA, PENNSYLVANIA. A CORPORA- MEANS FOR COOLING FAN-SHAFT. BEARINGS OF DRIERS.

Application filed April 14, 1922. Serial No. 552,808.

1 '0 all whom it may concern:

Be itknown that I, HERMANN BOGATY, a citizen of the United States, residing in Philadelphia, Pennsylvania, have invented certain Improvements in Means for Cooling Fan-Shaft Bearings of Driers, of which the following is a specification.

My invention relates to certain improvements in drying apparatus, in which heated air is circulated and in which fans are used as the circulating means. In drying apparatus of this type, the fan shaft and its bearings are located in aportion of the drying chamber, or the circulating chamber, and itis difficult to keep the bearings cool and the lubricant in proper condition.

One object of my invention is to provide means for enclosing the fan shaft and its bearings and to keep them cool by the circulation of cold air through the enclosure.

A further object of the invention is to utilize the fan as a means for drawing cold air through the enclosure for the fan shaft and its bearings. i

In the accompanying drawings:

Fig. l is a sectional elevation through a drying apparatus at one of the fans to illustrate my invention; and i Fig. 2 is a sectional view on the line 22, Fig. 1.

Referring to the drawings, 1 is the casing of a drier. 2 is a partition separating the drying chamber a from the heating, or circulating, chamber 6, in which heating coils of any typeare placed. In the partition 2 is a fan opening 3. Located in this opening is a fan 4, mounted on a horizontal shaft 5 adapted to bearings 6, 6 of any suitable type. In the present instance, the bearings are shown as ball bearings. Each bearing is mounted in castings 7, 7 The casting 7 is located in an opening in the outer casing 1 and the inner casting 7* is secured to a frame 8 within the heating chamber.

9 is a cylindrical enclosing casing for the fan shaft 5. This casing is made of wood in the present instance and is provided through the casing 9 and pipe 11. cooling the bearings 6, 6 The air passing through the casing 9 and pipe 11 is used. as part of the fresh air which is added to the heated air in circulation.

The lubricating cup 12 for the inner bearing can be located on the outside of the drier and the lubricant can be conveyed to the bearing by an inclined tube 13, Fig. 1, v

The cylindrical casing not only keeps the bearings cool, butalso protects the bear- 111S a 'amst harmful fumes and ases.

'-which are liberated when certain materials arebeing dried. I v p lVhile the shaft and enclosing casing are shown in a horizontal position, it will be understood that the casing may be arranged in connection with a vertical fan shaft, or it. can bearranged at anyangle desired.

I claim:

The combination in a drier, of a main casing enclosing a chamber in which heated air is in circulation; a shaft extending into the chamber; a circulating fan at the inner end of said shaft; an inner bearing and an outer bearing for the shaft; an enclosing-casing for the bearings and the shaft between the bearings, the space within said enclosing casing being open at the outer end. to admit fresh air and closed at the inner end; and a pipe connected to the inner end of the last mentioned enclosing casing and extending to the suction side of the circulating fan to cause a circulation of fresh, cool air past the bearings.

- HERMANN BOGATY.

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