US2075461A - Ventilator for windows and the like - Google Patents

Description

March 30, 1937 B. N. PARMENTER VENTILATOR FOR WINDOWS AND THE LIKE Filed June 21, 1934 2 Sheets-Sheet l March 30, 1937,

B. N. PARMENTER VENTILATOR FOR WINDOWS AND THE LIKE Filed June 21, 1934 2 SheetsSheet 2 Patented Mar. 30, 1937 UNITED STATES PATENT OFFICE 2,075,461 VENTILATOR. FOR WINDOWS AND THE LIKE Bert N. Panncnter, Lake Forest, Ill.

Application June 21, 1934, Serial No. 731,659

4 Claims.

The present invention relates to ventilators such as those usedin building openings, such as windows and the like, and more particularly to the louver type thereof.

Among the objects of the invention is to provide a novel ventilator of the kind and charac referred to above. 7,

Another object is to provide a novel louver or louver member for the ventilator above mentioned.

A further object is to provide a novel means for locking the louver series in adjacency or contracted condition.

Other objects, capabilities, advantages and features are comprehended by the invention as will later appear and as are inherently possessed by the invention. I g

Referring to the drawings? 1 Fig. 1 is a front outside view in elevation of a-' ventilator constructed in accordance with the invention;

Fig. 2 is a fragmentary transverse sectional view of the same with the ventilator in collapsed or 4-4 in Fig. 2 of the drawings;

Fig.5 is a fragmentary part sectional and part elevational view of the rear side of the ventilator showing the mode of suspension of the louvers;

Fig. 6 is a detail view of anend portion of a connecting element;

Fig. 7 is a fragmentary and vertical sectional view through the meeting rails of the window sashes and showing the relation of the side guides for the ventilator;

Fig. 8 is a fragmentary view of a louver made in telescopic sections for showing extensibility for different widths of windows;

Fig. 9 is a fragmentary view partly in section of the locking means; and,

Fig. 10 is a top plan view of the locking means and part sectional view of the lower rail of the sash and taken in a plane represented byline I'D-.40 in Fig. 2 of the drawings.

Referring more in detail to the drawings, the embodiment selected to illustrate the invention is shown in connection with a window having a stool l, a sill 2, frame'sides 3 each having sash channels 4 and 5 with guide strips 6 therebetween, outer guide strips I, and stops 8. In the channels 5 slides the lower sash having a lower rail 9, upper rail Ill (Fig. 7), glass II and putty l2, while in the channel 4 slides the upper sash comprising lower rail l3, (Fig. 7), glass 14, and putty The ventilator is lower sash and comprises a, series of louvers l6 each having an inclined body part or canopy l1 and an integral upper horizontal flange part [8, the lower edge of the body part having an intumed or bent back portion l9 to form a strengthening bead at the lower edge of the part II, and the flange part l8 having an inturned or bent back portion 20 to form a channel as later explained and for affording strength and stillness to the louver.

The upper louver it of the series has at the lower end of the body part IT 8. depending flange 2| having an inturned or bent backportion 22 to form a strengthening bead at the lower edge of the flange 2|. The upper flange l8 has an integral depending flange 23 adapted'to be secured to the upper part of the rail 9 preferably at the corner 24 thereof by any suitable securing elements, such as screws 25. Each louver has end portions 26 (Fig. 4) provided with slots or notches 21 for receiving flanges 28 of upright guides or shields 29 locatedin the sash channels 4 and having flanges 30 suitably secured to the frame sides 3 by screws 3|.

The louvers are so connected together as to be able to be in spaced relation or in adjacency as the series thereof is extended or expanded, or collapsed or contracted. Each louveris connected to the next louverof the-series preferably by a pair of connecting members 32, such members at an end portion of the louvers being shown in Fig. 5, the members at the other end portion not being shown but it will be understood they are arranged and constructed as those shown but in symmetrically reversed position. Each member is preferably in the form of a strip of resilient metal having an upper end portion 33 secured as by rivets-34 to the flange 20 of an upper louver of the series (Fig; 5), and having a lower end portion 35(Figs. 5 and 6) having a slot 36 for slidably receiving a pin or eyelet 31 extending through the flange parts 20 and I8 (Fig. 5), the end portion-35 passing through opening 38 in the flange I8 so that the end portion ,35 may be slidably disposed in the channel formed betweenthe flange parts I8 and 20. It will be apparent that when the louvers are spaced, as shown in Fig. 5, the end portion 35 has slid in the channel to the right as viewed in Fig. 5

secured to the rail 9 of the until the end of the slot 36 abuts the pin 31 and the member 32 is in an inclined position as shown. When the louvers are in adjacency (see Fig. 2) the end portion 35 moves to the left as viewed ,5 in Fig. until the right hand end of the slot 36 is proximate to or even merely abuts the pin 31, in which case the member 32 lies flat with and between or in parallelism with the flanges I8 of the adjacent louvers. This provides for a very simple means of suspension which is automatically adjustable to maintain the louvers parallel and horizontal.

The lower end of the flange 28 of the guide members 29, extends into curved portions 39 and 40 extending partly in the channels 4 (Fig. 4) at the sides of the window frame. These portions are so curved as to properly guide the louvers into position when the sash is lowered or closed and contracted into proper adjacency (Fig- 2), and also are of such width as to shed the rain from entry by the ends of the louvers. The same is true of the flange 28.

In cases when,it is desired to open the sash without using the ventilator,'a locking means is provided to maintain the louvers in adjacency (Figs. 2 and 9) whenever the sash is raised and lowered. An illustrative form of lock shown comprises a tube 4| extending through the sash rail 9 (Fig. 2) and'having an extension 42 accessible within the room. within the tube is a latch 43 having a stem 44 slidable through a head 45. A 1 spring 45 is located in the tube 4| and around the stem 44 and reacts between the latch 43 and the head 45. (Fig. 2). The latch 43 has a 3 'recess 41 having alength slightly greater than the width of the flange 20 of the lower louver and having a flat face 48 adapted to contact flatwise with the bottom face of the flange 2B of the lower louver. At the end of the recess is pro- 49 vided a projection or tongue 49 adapted to engage the outer edge 50 (Figs. 2'and 9) of the flange 20. The other end ofthe stem 44 has a laterally extending arm 5| to the end of which is secured a handle 52 having a knob 53. The 45 arm 5| is capable of moving in a 2 slot 54 (Fig.

10) for locking and unlocking function.

The side .guides 29 may extend upwardly in the channel 4 of the upper sash, the latter being cut away on the outer face of the side rails to 50 aflord clearance for the flange 30 (Fig. 4) and also has a groove 55 (Fig. '7) for sliding along the flange 28 (Figs. 4 and 7) The louvers may be made in telescope sections for adaptation to windows of diiferent widths.

55 In Fig. 8 is-shown a louver having sections 56 and 51 connected by a central section 58 telescopically slidable with the sections 56 and 51.

In assembling, with the upper sash suitably built for receiving the side guides, the latter are inserted in place and then secured to the sides of the window frame as shown in the drawings. The louver assembly is then secured to the lower rail 9 of the lower sash by securing the flange 23 to the corner 24 thereof by the screws 65 25. The lock may then be set in place in the rail 3 (Fig. 2) after boring a' suitable hole therefor. The end portions 26 of the louvers extend toward the side guides, with the inclined part in front of or outside of the flange 28, the latter being located in the guide slot 27 (Fig. 4).

i With the ventilator in the position shown in Fig. 2, the lower sash may be raised and the upper louvers also raised progressively until the series is extended, such as is shown'in Figs. 1, 3

75 and 5, the lower louver having its canopy H extending over the curved parts 39 of the side guides (Fig. 3). As the series is extended an upperlouver so pulls on the connecting members 31 as to cause their slotted ends to slide in the next lower louver of the series until the outer ends of the slots 35'abut the pins 31, at which instant the lower louveris lifted. .When the sash is lowered the series contracts until the louvers are nested or inadjacency as shown in Fig. 2. When contracting the lower ends of the connecting members 32 of an upper louver so slide in the next lower louver as to bring the inner ends of the slots 36 to the pins 31 and dispose the members 32 in parallelism with the flanges l8 of the louvers.

When it is desired to lock the ventilator so that the sash may be raised and lowered without using the ventilator, the handle 52 and knob 53 are turned into upright position so as to bring the arm 5| at the end of the longitudinal part of the slot 54. The spring 48 acts to project the latch 43 under the flange l8 of the lower louver. The handle 52 and 53 is then turned so as to bring the arm 5| into the outer lateral branch of v the slot 54 whereby the latch 43 is turned or rotated to bring the projection or lip 49 into place outside the edge 50 of the flange part 20 of the lower louver (Fig. 9), so as to hook the same. When the sash is raised the louver series in adjacency condition (Fig. 2) is raised with the sash. When it is desired to unlock the series, the handle 52 and knob .53 are turned or rotated from the outer branch of the slot 54 and are pulled with the latch against the spring 46, compressing it, and are then turned into the inner branch of the slot 54. This-releases the projection or lip 49 from the flange part 20 of the' land 3).

While I have herein disclosedv an illustrative embodiment of the invention it is to be understood that the invention is not limited thereto but comprehends other structures, details, ar-

rangements of parts, features and the like without departing from the spirit of the invention.

Having thus disclosed the invention,

I claim:

1. A ventilator for windows and the like, comprising a series of louvers being so constructed and arranged as .to be held in spaced relation when extended to permit ventilation and in close adjacency when collapsed, and resilient connecting' members for said louvers, each of said connecting members having an end directly secured to a louver of the series and the other end of said connecting member being directly slidably connected to the next louver of the series and being so arranged and constructed as to permit relative movement of said louvers into spaced or adjacency relations thereof to the slidable extent of said slidable connection.

2. A ventilator for windows and the like, comprising 'a series of louvers being so constructed and arranged as to be held in spaced relation when extended to permit ventilation and in close adjacency when collapsed, and resilient connecting members located between said louvers to support the same, each of said connecting members having an end directly secured to a louver of the.

series at a given pointthereof and the other end of said connecting member being directly slidably connected to the next louver of the series at a point remote from the point corresponding to the said given point of said above mentioned louver of the series and being so arranged and constructed as to permit relative movement of said louvers into spaced or adjacency relations thereof to the slidable extent of said slidable connection. 2

3. A ventilator for windows and the like, comprising a series of louvers being so constructed and arranged as to be held in spaced relation when extended to permit ventilation and in close adjacency when collapsed, and flat connecting members being so constructed and arranged as to extend longitudinally between said louvers in parallelism therewith. when in adjacency and inclined thereto when in spaced relation, each of said connecting members having an end fiatwise secured to a louver of the series and the other end of said connecting member being slidably connected flatwise to the next louver of the 20 series and being so arranged and constructed as to permit relative movement of said louvers into spaced or adjacency relations thereof to the slidable extent of said slidable connection.

4. A ventilator for windows and the like, comprising a series of louvers being so constructed andarranged as to be held in spaced relation when extended to permit ventilation and in adjacency when collapsed, connecting members for said louvers'so constructed and arranged as to slidably connect said louvers to permit extension and contraction of the series means for securing the upper louver of the series to the lower sash rail of a window sash, and a locking means connected to said lower sash rail and so constructed and arranged when in looking position as to hold said louvers in adjacency when the sash is moved and to release said louvers when in non-locking position for extension of the series when the sash is raised.

BERT N. PARMENTER.

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