US1406783A - Ventilator - Google Patents

Description

F. J. TOMSEK.

VENTILAIOR,

APPLICATION FILED JULY 31 1920.

1,406,783. Patented Feb.14,.1922'..

3 SHEETS-SHEET I.

F. J. TOMSEK.

VENTILATOR.

APPLICATION FILED JULY 31.1920.

1,406,783. Patented Feb.14, 1922.

3 SHEETS-SHEET 2.

A9 41 30 4217:23- 30 as .3/

INVENTQR ATTORNEY WITNESS:

F. J. TOMSEK.

VENTILATOR.

APPLICATION FILED JULY 31.1920.

Patented Feb. 14, 1922.

3 SHEETS-SHEET 3.

INVENTOR ATTORNEY N am;

mow/(44A W UNITED STATES,

PATENT OFFICE.

FRANK J. TOIVISEK, OF OMAHA, NEBRASKA.

VENTILATOR.

Application filed July 31,

T 0 all to 710m it may concern:

Be it known that I, FRANK J. ToMsnx, a citizen of the United States, residing at Omaha, in the county of Douglas and State of Nebraska, have invented new and useful Improvements in Ventilatora'of which the following is a specification.

This invention relates to improvements in ventilators and has for an object the provision of a ventilator of simple construction, formed of a number of interlitting sections which may be shipped in knocked-down condition and easily assembled for use.

Another object of the invention is the provision of a ventilator having its openings protected by a grating which rests within an annular groove surrounding the ventilator body, by means of which it is held in position.

A further object is the provision of a novel arrangement of damper which controls the passage through the ventilator.

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 an elevation of a ventilator embodying the present invention.

Figure 2 is a plan view'of the same.

- Figure 3 is a central'vertical sectional view.

Figure i is a section on the line 4-4 of Figure 3.

Figure 5 is a similar view on the line 51-5 of Figure 3.

Figure 6 is a detailed View of the damper.

Referring to the drawings in detail, wherein like characters of reference denote corresponding parts, the reference character 10 indicates the body of the ventilator which is herein shown as of cylindrical form and is provided adjacent its top with a strengthening bead 11, the latter being spaced from the upper edge of the body.

Extending centrally through the body of the ventilator is a pipe 12 and resting'upon this pipe is a bell shaped member 13, which is surmounted by an ornament 14. The member 13 is provided with a socket 15 so as to receive the pipe 12 and the latter is secured within the socket by a swiveled fastening device, herein shown as a cotter pin 16, which passes through the bell shaped member and through openings provided in the pipe.

Specification of Letters Patent- Patented Feb. 14:, 1922.

1920. Serial No. 400,354.

Mounted upon the body 10 of the ventilator is an annulus 17 which is of V shaped cross sectional shape and is provided around its inner edge with a flange 18, while the adjacent edge of the annulus rests upon the bead 11. The flange 18 is positioned within agroove formed by turning over the upper end ofthe body 10 of the ventilator, as shown at 19 and this turned over end also provides seat 20 for a damper'21 to be hereinafter described. Secured tothe annulus 17 are braces 22 and 23, which are spaced around the ventilator, being bolted or otherwise secured to the annulus 17 as indicated at24. Secured to the braces 22 and 23 is a cylindrical member or collar 25 which is provided adjacent its upper and lower edges with corrugations or grooves 26,

being shown as of o-gee formation. This adds to the appearance of the ventilator and serves to strengthen the collar 25. Secured to the, braces 22 as indicated at 27 and to the braces 23 as indicated at 28' is an annulus or cap 29 which is provided with a small opening surrounded by a flange 30 which extends upwardly within the bell shaped member 13 against a shoulder 31 provided in the said member.

The vertical arms of the braces 22 and 23 are spaced slightly from the ventilator body 10 and this space forms a seat for the reception of an annular grate member or screen 32, herein shown as formed of expansible metal. Any other form of screen may be substituted if desired. The screen may thus rest upon the annulus 17 and will remain in position without any other securing means.

1 The damper 21 is formed of oppositely inclined walls 33 which are joined at their outer edges by a seam 3 1'which provides an annular ring for contact with the seat 20 of the body of the ventilator. The damper is provided with oppositely located openings 35 which receive the pipe 12 so thatv the damper may have free sliding movement upon the pipe. Secured to the damper as indicated at 36 are cables 37 which pass through pulleys 38 suspended from a flanged collar 39 carried by the pipe 12, the collar being secured by a pin or rivet 40.

The pulleys 38 extend within openings 11 provided in the pipe 12 and the cables 37 extend into the pipe and are connected to a chain 4.2 which passes downwardly within the pipe and extends through a slot 43 and is provided with a handle 14.

By pulling downward upon the handle, the damper may be raised to the desired height to admit of a proper amount of ventilation and ma be held in its adjusted position by engaging the T head links oi the chain 42 with the walls of the slot 43. If desired, the pipe may be bent in the manner shown by the dotted lines at 45 to allow for the ridge ribs or a building.

In order to guide the damper in its movement and prevent rotation upon the pipe 12, there is secured to the damper as indicated at at, one end of an arm 47, the free end of which operates in a slot 48 formed in the pipe 12. The arm -18 is looped to provide a ring L9, within which may be inserted a drift pin so as to pull downward and release the arm from the slot, or for the purpose of inserting the arm in the slot. 1

-Disposed transversely of the body 10 of the ventilator is a strip or brace 50 whose opposite ends are secured to the ventilator body as shown at 51 and whose intermediate portion is provided with an opening 52 for the passage of the pipe 12. L shaped arm 53 has one end passing through a slot 5st in the brace 50 and is provided with a nut 55 by means of which it is held in position. The opposite end of the arm 53 holds the said pipe in position.

The invention is susceptible of various changes in its form, proportions and minor A substantially 1. A ventilator comprisinga tubular body open at the top, a substantially horizontally arranged annu us detachably supported upon the body, braces secured to and v spaced around the annulus, a cap secured to the braces and provided with an annular flange surrounding a central opening, a cover engageable with the flange and surrounding the opening, an annular screen located within the braces and supported upon the annulus, a damper for controlling the open top of the body, guiding means for the damper and means whereby'the damper ma be operated. r V

2. A ventilator comprising a tubular body open at the top, a substantially horizontally arranged annulus detachably supported upon the body,vertically disposed braces spaced around and slightly from the inner edge of the annulus, an annular screen located within the braces and resting upon the annulus a damper operatingwithin the screen for controlling the open top of the body, means for operating the damper and a cap secured to the braces above the body.

In testimony whereof I ailix my signature.

FRANK J. TOMSEK.

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