US2551223A

US2551223A - Slant roof ventilator

Info

Publication number: US2551223A
Application number: US624121A
Authority: US
Inventors: George H Schneider
Original assignee: INLAND STEEL PRODUCTS CO
Current assignee: INLAND STEEL PRODUCTS CO
Priority date: 1945-10-24
Filing date: 1945-10-24
Publication date: 1951-05-01
Anticipated expiration: 1968-05-01

Description

y 1951 G. H. SQZHNEIDER SLANT ROOF VENTILATOR 3 Sheets-Sheet 1 Filed 001;. 24, 1945 George H. Schneider IN VEN TOR.

ATTORNEY G. H. SCHNEIDER SLANT ROOF VENTILATOR Filed Oct. 24, 1945 5 Sheets-Sheet 2 George H. Schneider INVENTOR.

ATTORNEY y 1951 G. H. SCHNEIDER SLANT ROOF VENTILATOR 3 SheetsSheet 5 Filed Oct. 24, 1945 Cieorgefii c iggidez 3W5 i ATTORNEY:

Patented May 1, 1951 SLANT ROOF VENTILATOR George H. Schneider, Milwaukee, Wis., assignor to Inland 'Steel Products Company, a corporation of Delaware Application October 24, 1945, Serial No. 624,121

4 Claims. 1

This invention relates to slant roof ventilators for use on pitched roofs generally constructed of shingles.

One of the principal objects of the invention is to increase the capacity of such ventilators for a given ventilator size without endangering leakage of rain and snow in case of storms.

Another object of the invention is to provide a front opening and through passage :for the ventilator that approaches in capacity the opening of the ventilator in the plane of the roof.

Another object is to simplify the construction and arrangement of parts in a slant room ventilator, and to thereby provide a less costly and more readily fabricated and assembled ventilator.

Another object is to improve the baflle construction for keeping out the rain and snow in case of storm.

Another object is to simplify the construction and mounting of the screen on the front opening of a slant roof ventilator.

Another object is to eliminate the requirement for soldering to seal overlapping joints, and to provide the joints between the parts in such locations and manner as to prevent leakage.

Another object is to improve the appearance and sales appeal of a slant roof ventilator.

The accompanying drawings illustrate a slant roof ventilator embodying the invention and the views therein are as follows:

Figure 1 is a perspective view showing the ventilator disposed on the slant roof, as in service;

Fig. 2 is a vertical central section through the ventilator and a part of the roof; I

Fig; 3 is a front elevation of the ventilator;

Fig. 4 is a top plan view of the ventilator;

Fig. 5 is a detail section showing the mounting for one end of the screen;

Fig. 6 is a perspective view of a partially formed top or roof piece prior to assembly;

Fig. 7 is a perspective view of the formed right side piece prior to assembly;

Fig. 8 is a perspective view of a formed front piece prior to assembly; and

Fig. 9 is a perspective view of the bafile piece prior to assembly.

The ventilator comprises in its general outlines, a flat rectangular sheet metal base I having a central rectangular opening. 2 therein adapted to register with an openingl.3 through the slant roof 4, and a dormer 5 over the openin having a front screened opening'f-S sheltered from rain, and internal baflles 1 and& for keep-.

2 ventilator and entering the opening in the roof.

The metal base I is adapted to fit beneath the upper shingles 9 and to fit over the lower shingles ID, as shown in Figs. 1 and 2, and to under and overlap therewith for a substantial distance all around the ventilator to prevent leakage.

The dormer 5 has vertical side walls II and 12 supporting a curved roof piece [3 and providing a front opening 6 of substantial height and capacity.

The bafile 1 is disposed rearwardly of the opening 6 and extends upwardly and forwardly from the front edge of opening 2, towards the top or outer edge of opening 6. The upper edge of baflle 1 is spaced from the upper edge of opening 6 a distance equal to the height of opening 6, and is also spaced from the roof piece 13 nearly the same distance so that the air passage over the battle 1 is substantially equal to the capacity of the opening 6.

The bafiie 8 extends between the side walls II and I2 of dormer 5, and has end flanges [4 spot welded to the corresponding side walls to hold the baflle in place. The baflle 8 is preferably disposed in a substantially vertical plane bisecting the distance between the upper edge of bafile 1 and the upper edge of opening 6. The lower edge of bafile 8 approximately bisects the screened opening 6 just to the rear of the screen 15. The upper edge of bafile 8 is spaced at all points from roof piece l3 a distance nearly as great as one-half the height of opening 6 so that the air passage over the bafile is substantially equal to the capacity of the upper half of opening 6. Likewise the air passage below bafile 8 and between it and bafile 1 is equal to the capacity of the lower half of openin 6.

The bafile 8 preferably has a short forward lip or flange IE on its upper edge serving as a shield against rain and snow tending to pass upwardly over the baflle. In construction, when the ventilator is positioned on a roof of ordinary pitch the upper edge of opening 6 is in front and below the level of the upper edge of baflle 8, and the lower edge of battle 8 is in front and below the level of the upper edge of baflle 1, so that there is practically no tendency for rain and snow to enter the ventilator horizontally in case of storm. 7

The screen [5 slants backwardly and downwardly from the outer edge of the roof piece l3 so thatit is sheltered from ordinary rain by the roofpiece. The screen isconstructed with a sheet metal binding ll covering its edge portions ing the rain and snow from passing through the u to protect and stifienthe same.

The screen I5 is mounted in place against an inwardly-turned flange l8 at the forward edge of each side wall II and I2 and is held by a flap H1 at the top formed by turning downwardly thereover an edge portion of the roof piece l3, and by a small finger near'each bottom corner formed by a cut-out portion of the corresponding flange I8 and bent inwardly over the front of the screen at the edge.

The bottom edge of the screen l5 rests freely on the base I and the top edge of the screen engages the inside surface of top piece [3 with the fiap [9 extending downwardly over the front side. The ends of the screen [5 register with the corresponding side walls II and i2 and lie against the flanges H3.

The fiap l9 extends downwardly for a short distance, preferably a little less than the height of the baffle 1, to define the upper edge of the front opening and guard the upper portion of the ventilator against rain. The front opening of the ventilator is of substantially the full width between the sides II and I2 and of a height corresponding to the height of the opening through base I and between the front edge of the-latter opening and the top piece I3.- This construction provides a large passage for air through the ventilator and at the same time keeps the rain and snow out. The front opening is considerably greater in height than one-half the height of the hood above the base.

The bafiie l is considerably lower than in ventilators having a so-called splash pocket, and the additional separate bafile 3 is arranged to cooperate with baffle '1 without restricting the passage of air through the ventilator.

The two baflles l and 8 provide substantially complete vertical coverage for the front opening to thereby prevent infiltration of rain and snow through the ventilator.

Fabrication of the ventilator is simplified by constructing the base and hood from four parts which are secured together along lines that eliminate danger of leaks.

The roof piece 13 extends from the front edge and flap 19 back to the upper edge of base I and constitutes both the roof for the dormer and the upper rear leg of the base, as shown in Fig. 6.

The base I is made up of four pieces: the front leg being plate 21, the rear leg being the upper end of roof I3, and the side legs being the bot-' tom flange on each of the sides II and I2.

Thev side walls I! and I2 are formed integral with the corresponding side legs of base I, as shown in Fig. '7, by bending the side walls upwardly from the plane of the base.

The front leg 2| of base I extends for the full width of the base and back under theside legs of wall pieces H and I2 to which it is spot welded as at 22. The baffle l constitutes a flange bent upwardly from the front leg 2! between side walls H and I2 and which defines the front edge of the opening through the base.

In assembling the ventilator, the side walls H and [2 are first assembled on the front le 2! and secured thereto by the welds 22. The baffle 8 is then positioned between the side walls H and i2 and its end flanges spot weld-ed to the corresponding side walls as at 23. The roof piece 43 is then applied and joined to the upper edges of side walls H and I2 and to the inner edges of the side legs of base-l near the top by crimping as at 24. The screen' I5 is then placed in position against flanges l8 and flap l9 bent-inwardly thereover. Fingers 20 arethentbent in-. 7

4 wardly against the screen to complete the assembly.

The fabrication and assembly operations are simple and rapid, making a ventilator that can be constructed without expensive machinery or labor.

The ventilator is free from transverse joints of the kind that are exposed to the elements or require soldering to prevent leakage.

The smooth curved lines of roof piece [3 harmonize with any type of roof and tend to give a pleasing-appearance to the ventilator as Well as being more efficient in shedding rain. By reason of the shape of the roof piece I3 extending smoothly back under the shingles of the roof, there is no tendency for the water to back up under the shingles or for twigs and leaves to catch near the bottom edge of the shingles resulting in undesirable roof leakage.

Various embodiments of the invention may be employed within the scope of the accompanying claims.

I claim:

1. A- slant roof ventilator comprising a flat base to be disposed substantially in the plane of a slant roof and having a central substantially rectangular opening to register with a corresponding ventilating opening in the roof; a hood for said opening disposed to protect the same from weatherelements and providing a free air passage therefrom to a front exterior opening facing down the roof and bounded by vertical side walls and a' connecting upper roof member therefor, a baflie constituting a flange bent upwardly and forwardly along the front edge of the opening in the base member between the side walls of the hood and spaced rearwardly from the front opening of the hood, and a second substantially vertical ballle plate secured at its ends to the side walls of the hood and disposed to extend from adjacent the front opening at an angle substantially midway between the upper edge of the first baffie and the upper edge of the front opening to divide the latter into substantially upper and lower halves and defining a free air passage over the baille plate between the same and the hood of dimensions approximating the upper half of the front opening, said second baflle being spaced from said first bafile to define a free air passage therebetween of dimensions approximating the lower half of the front opening.

2. A slant roof ventilator comprising a flat base to be disposed substantially in the plane of a slant roof and having a centralsubstantially rectangular opening to register with a correspondingvn tilating opening in the roof, a hood for said opening disposed to protect the same from: weather elements and providing a free air passage there from to a front exterior opening facing down the roof and bounded by vertical side walls and a connecting upper roof member therefor, a bafile constituting a flange bent upwardly and forwardly along the front edge of the opening in the base member between the side walls of the hood and spaced rearwardly from the front opening of the.

- :3. ,A slant roof ventilator comprising a flat base to be disposed substantially in the plane of a slant roof and having a central substantially rectangular opening to register with a corresponding ventilating opening in the roof, a hood for said opening disposed to protect the same from weather elements and providing a free air passage therefrom to a front exterior opening facing down the roof and bounded by vertical side Walls and a connecting upper roof member therefor, a baffle constituting a flange bent upwardly and forwardly along the front edge of the opening in the base member between the side walls of the hood and spaced rearwardly from the front opening of the hood, and a substantially vertical second baffle plate secured at its ends internally to the side walls of the hood, the lower edge of said second bafile being disposed in front of and below the upper edge of said first named bafiie to cooperate therewith and dividing the front opening into substantially equal upper and lower openings and the upper edge of said second bafiie being spaced from the roof member of the hood to provide an air passage therebetween of dimensions substantially equal to said upper opening.

4. A slant roof ventilator comprising a flat base to be disposed substantially in the plane of a slant roof and having a central substantially rectangular opening to register with a corresponding ventilating opening in the roof, a hood for said opening disposed to protect the same from weather elements and providing a free air passage therefrom to a front exterior opening facing down the roof and bounded by vertical side walls and a connecting upper roof member therefor, a baiile constituting a flange bent upwardly and forwardly along the front edge of the opening in the base member between the side walls of the hood and spaced rearwardly from the front opening of the hood, and a substantially vertical second baiile plate secured at its ends internally to the side walls of the hood, the lower edge of said second baffle being disposed in frontof and below the upper edge of said first named baffle to cooperate therewith and dividing the front opening into substantially equal upper and lower openings and the upper edge of said second bafiie being spaced from the roof member of the hood to provide an air passage therebetween of dimensions substantially equal to said upper opening and said second baflle being spaced from the upper edge of said first named baiile to provide an air passage therebetween of dimensions substantially equal to said lower opening.

GEORGE H. SCHNEIDER.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 1,264,056 Geibig Apr. 23, 1918 1,742,185 Bourke Jan. 7, 1930 2,300,842 Leslie Nov. 3, 1942 2,309,717 Siebenlist Feb. 2, 1943 2,363,879 Leslie Nov. 28, 1944 2,382,076 Leslie Aug. 14, 1945