US933051A

US933051A - Chimney-ventilator.

Info

Publication number: US933051A
Application number: US48403109A
Authority: US
Inventors: Percy Bloom
Original assignee: Individual
Current assignee: Individual
Priority date: 1909-03-17
Filing date: 1909-03-17
Publication date: 1909-09-07
Anticipated expiration: 1926-09-07

Description

P. BLOOM. CHIMNEY VENTILATOR. APPLICATION I' ILED HA3. 1'], 1909.

Patehted Sept. 7, 1909.

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P. BLOOM.

CHIMNEY VENTILATOR. 7 APPLICATION FILED MAB,.17, 1909.

933,051. Patented Sept. 7, 1909.

2 SHEETSSHEET 2.

PERCY BLOOM, OF NEW YORK, N. Y.

CHIMNEY-VENTILATOR.

Specification of Letters Patent.

Patented Sept. '7, 1909.

Application filed March 17, 1909. Serial No. 484,031.

To all whom it may concern:

Be it known that l, PERCY BLOOM, a citizen of the United States, and resident of how l'ork, borough of Brooklyn, in the county of Queens and State of New York, have invented certain new and useful lniprovements in Chimney-Ventilators, of which the following is a specification.

This invention relates to improvements in chimney ventilators.

In the drawings: Figure l is a side view of a ventilator constructed in accordance with this invention. Fig. 2 is an enlarged vertical sectional view of a ventilator constructed in accordance with this invention. In this figure the parts are separated and drawn closer together. Fig. 3 1s a sectional view of the locking cap, pivot pin and hood assembled. Fig. & is a sectional view of the pivot pin and hood with the locking cap raised above. Fig. 5 is a sectional view of the hood with the pivot pin and locking cap above in separated position. Fig. 6 is a plan view from underneath the locking cap. Fig. 7 is a plan view from above of the weather hood. Fig. 8 is a side view of the lower end of the spindle showing an alternative construction, the cap being shown in section.

The principal objects which the present invention has in view are; to provide a mechanism which may be readily and quickly lubricated; to provide a mechanism which may be quickly and easily dis-assembled for repair or replacement; and to provide a long wearing pivot for the revolving structure.

\Vith these objects in view, the construction consists in substituting for the usual solid rod or spindle, the present hollow pipe spindle 2. This is of any desired length, and is provided at the lower end with the slightly cupped shape, shown in Fig. 2 of drawing,to more closely fit the. pivot ball The pivot ball 3- rests within the upper edges of the depression The depression 4 serves to maintain the ball 3 in oil as long as the cup 5 contains oil. It further serves to maintain the center location of the ball 3. The cup 5' is formed of any desired size and of a shape substantially as shown in the drawings. The spindle 2 is maintained in its central and vertical position by the pivot pin -6, which is mounted in a perforation which is extended through the top of the hood 7. The pivot pin (3 closely fits within the tubular spindle 2-, and is provided with the extensions 8 which lit within the recesses -9 in the top of the hood 7. By means of the extensions -8- the pin 6 is prevented from rotating and thereby causing any loosening action upon the screw cap lO- when the same is placed in position. The perforation through which the pin 6 is inserted extends through the boss 11 set up from the cap'7.

The boss l1-- is provided with the flanges -l2. It is under these flanges that the extensions 13 with which the cap 10 is provided, extends. To permit the extensions 13 to pass the flanges -l2, the said flanges are cut away at -1el. The flanges 12 may, if desired, be constructed with an inclined under surface, which produces the effect of drawing the cap -l0 hard down upon the top of the pin -6. In this position of the cap l0- the pin 6 and the spindle 2, the rotary parts of the present device are held firmly 1n their operative positions.

As in the ordinary construction, the spindle 2 is provided with the lifting fan blades 15, fixedly mounted thereon in any suitable manner. The spindle -2 with the blades -l5, are caused to rotate by the cowl shown in Fig.1. The cowl consists in a number of wind vanes 16 which are rigidly mounted on the head 17 and the framing rod l8, to receive the wind with a glancing effect on the one side of the vertical central line of the cowl; and with a driving effect on the opposite side, whereby the cowl is rotated by the wind.

The blades 15 are so shaped and inclined from the vertical as to operate as an exhaust fan when the cowl is rotated by the Wind. The construction of the cowl and which are formed integrally with the cup 5- and are riveted to the chimney 20 at -22-. Secured to the chimney 20- are the arms 23. To the upper end of the arms -23 is secured the hood -7, side flanges 24 being formedin the said hood to receive the ends of the arms 23.

The arms -23 are held between the flanges 24 in any suitable manner,that herein shown being by means of screws 25+.

IVhen assembling the device as described, the spider 21 bearing the cup 5 is placed in position on the chimney 20and riveted thereto. WVithin the cup 5 is then placed the ball -3. Upon the ball 3 is seated the lower end of the spindle 2 which carries the fan l5 and the head 17 with the vanes 16-.

The arms 23 are riveted to the chimney '20, and the upper end of the arms are placed in position to be screwed to the weather hood 7, as shown. The arms -23 may be attached to the chimney -20 in advance of the placement of the spindle 2 and its connected parts.

When thespindle and parts carried thereby are in position, the hood 7- is inserted between the upper end of the arms 23 and secured thereto by the screws The pin -G is now introduced through the perforations in the boss -'11 'am1 into the upper end of the spindle The extensions 8 are inserted in the recesses 9. The cap l0 is then adjusted so that the openings 1 l in the flange 12 register with the extensions l3-.

fThis register permitsthe flange 12 to pass above the extensions 13 in such position that when the cap 10 is rotated the said flanges extend over the said extensions and cause the cap to bear down'upon the top of the pivot pin '6 to'hold'the same firmly in position.

To dis-assemble the parts, the operation just described is reversed in that the cap l0 being removed, the pin 6- may be withdrawn, the hood 7- be disengaged from the arms 23 and removed,when the spindle 2-, with its connected'vanes -16and the fan 15 maybe drawn from the top of the chimney 20.

It is most desirable that the ventilator should rotate with as l ittlefriction as possible, and to accomplish thisfthe 'pivot on which it turns must be well lubricated. It is not practical in the position in which the device is placed exposed totheweather to mount the same upon anydelicate bearings such as the popular type of anti-friction bearings. In the usual constructions in use today, it is necessary to remove the fans and vanes to lubricate the pivot. This I avoid in the present invention by feeding the oil to the pivot point through the hollow spin- To do this with the construction moved. This exposes the open top of the tubular spindle 2-. The spindle is filled with a suitable lubricant and the pin 6 and cap 10 are replaced. This operation, it will be understood, would not involve more than a few minutes at a time.

The lubricant I prefer to use is a heavy oil. It will be understood, however, that the mechanism here shown isof such character that any of the lubricating greases could be used.

As the'vanes 1 6"arerotate d, the ball 3- forms the pivot on which the spindle 2- turns. The spindle being filled with the'lubricant, the joint is constantly lubricated. Gradually the oil passes the joint and in doing so escapes into the cup 5-,-

lubricating the joint between the ball 8 and the edge of the spindle. The lubricant passes into the recess -{l under the ball Gradually the lubricant originally placed in the spindle 2 passesinto thecup -5- and fills the same. In this condition, and as longas the oil'remamsin the, cup 5,the pivot for the spindle works in oil. lv'he'n inthe course of time t again becomes necessaryto re-oil the de- 'v1ce, th1s s accomplished by repeating the operation above describe'd 4 e I In Fig. 8 of the drawings have shown a construction wherein a solid steel point 2(5- is used in place of the ball --3- heretofore described. In this construction I the steel point 26- -is driven into the lowere11d of the spindle 2 an d shaped as shown. To feed the lubricant to this point thelspindle is provided with a perforation 27 lin the side and lower end of the tubular portion. Through this perforation tl ie lubricantfpasses to the cup and the recess I Having thus described this invention,

"what is claimed is I chimney ventilator comprising an open ended tubular support provided with wind vanes'and an exhaust fan, a pivot pin insertedin the'upper 'en'dof said'support,

a hood'to hold s'aid pin against rotation 'a'ndadapted to cover the upper end of said support, a ball bearing: located at the lower end of said' tube and serving to close the end of same whereby said tube is converted into a reservoinfor oil to serve to'lubricate said bearing.

2. A chimney ventilator comprising an 'open' endedtubular support provided with wi'nd'vane's and an exhaust fan, a pivot pin inserted in the upper end of said support, a hood to hold saidpin against rotation and adapted to cover the upper end of said support a cup shaped reservoir located at the lower end of said tubular support, a ball bearing located between said reservoir and the lower end of said tube and serving to close the same, substantially as set forth.

Signed at New York in the county of New York and State of New York this 13th 10 day of March A. D.- 1909.

PERCY BLOOM.

Witnesses:

DANIEL DE V. HARNED, E. F. MURDooK.