US2539066A

US2539066A - Window fastener

Info

Publication number: US2539066A
Application number: US45319A
Authority: US
Inventors: Falk Harold Walter
Original assignee: Wright Products Inc
Current assignee: Wright Products Inc
Priority date: 1948-08-20
Filing date: 1948-08-20
Publication date: 1951-01-23
Anticipated expiration: 1968-01-23

Description

Jan. 23, 1951 H. w. FALK 2,539,065

WINDOW FASTENER Filed Aug. 20, 1948 Patented Jan. 23, 1951 WINDOW FASTENER Harold Walter Falk, Minneapolis, Minn., assignor to Wright Products, Inc., St. Paul Park, Minn., a corporation of Minnesota Application August 20, 1948, Serial No. 45,319

4 Claims.

My invention relates to an improvement in window fasteners wherein it is desired to provide an apparatus for holding a pivoted sash in adjusted relation to its frame.

It is the object of the present invention to provide a fastener useful in ho'ding a pivoted sash in desired adjusted relationship relative to its frame. While many such fasteners have been previously constructed the present device is believed advantageous because of its simplicity of construction and effectiveness of operation.

A feature of the present invention lies in the. provision of a Window fastener having a pair of pivotally connected links secured together at a knee joint. Friction washers are provided in the knee joint to hold the arms in proper adjusted relationship. The knee joint is simply con structed and inexpensive to manufacture.

A feature of the present invention resides in the provision of a window fastener having a pair of arms formed of angle shaped cross section and which are pivotally connected in opposed relation. The angular flange extending along the end of one arm is arranged to abut the angular flange on the other arm to prevent the arms from pivoting into alignment. engaged the angular flanges on the two' arms form a sturdy brace between the arms and provide a maximum of strength.

An added feature of the present invention lies in the provision of a detachable plate having a flat side engageable with the angular flange of one arm. Friction washers are interposed between this plate and the other arm, as well as between the said other arm and the arm to which These and other objects and novel featuresof my invention will be more clearly and fully set forth in the following specificaton and claims. In the drawings forming a part of my speciflcation:

Figure 1 is a perspective view of my fastener showing the construction thereof.

Figure 2 is a perspective view of the opposite side. of the fastener. Figure 3 isa longitudinal sectionaltiew through the arms showing the construction of the fastener.

The window fastener A includes a pair of pivotally connected arms Ill and H which are pivotally connected by a pivot bolt l2. The arm is detachably and pivotallyconnected to a When thus stile plate I3 having an off-set center portion l4 and being terminally connected by screws or other suitable means [5 to the window frame B. The screws 15 extend through co-planar bracket ends I6.

The detachable connection between the stile plate l3 and the arm I0 is similar to that described in my previous application Serial No. 717,874 filed December 23, 1946, issued as Patent No. 2,498,535 on Feb. 21, 1950. A spring arm I! is riveted or otherwise aflixed at 19 to the arm It and is provided with an aperture 26 near one end thereof. as indicated at 2|. arm l0 and the aperture 28 of the spring arm I! are designed to accommodate a pivot 22 mounted upon the off-set center I? of the stile plate 13. This pivot 22 is provided with a head 23 spaced from the off-set center portion 54 a distance slightly greater than the thickness of the arm Ill. The head 23 is too large in diameter to pass through the sot of the bifurcated end 2!. However, when the spring arm l! is in parallel re.- lation to the arm It, the head 23 engages in the aperture 20 in the spring arm and is held from longitudinal movement relative to the arm 10. However, when the spring arm I! is sprung away from the surface of the arm Ii], the pivot 22 may be disengaged from the slotted end 2! of the arm ID. A projecting finger 24 on the spring arm I! extends through a siot 25 in the arm I0 for simplifying the operation of the spring arm.

The arm I!) is provided with an integral flange 26 which extends along one edge thereof to a point slight y beyond the center point of the con-- base plate 32 for accommodation of screws or bolts 34 by means of which the bracket 3| may beattached to the pivoted window sash C. The arm H is provided with a flange 21 extending longitudinally thereof and in' right angular relationship therewith. The'end of the flange 2'lprojects slightly beyond the center of the pivot bolt l2 so that the

flanges

21 and 26 engage in end abutting relation as the arms are pivoted toward aligned position.

The structure of the knee joint between the arms Ill and II is best illustrated in Figure 3 The end of the arm I0 is bifurcated; The bifurcated end 2! of the 3 of the drawings. The bolt I2 is provided with a multi-sided shank portion 35 adjacent the bolt head 36. This multi-sided shank portion 35 extends through a similarly shaped aperture 31 in a bearing plate 39. The bearing plate 39 has an elongated flat side 40 which bears against the inner surface of the flange 21 and is held from rotation thereby. The flange 21 is increased in width at its end 4| so as to provide a firm bearing for the edge 40 of th plate 39. A transverse notch 42 is provided in the wide portion 4| of the flange 21 and an ear 43 on the plate 39 is engaged in this notch. Obviously the plate 39 is movable axially of the pivot bolt l2, but is held from rotation by the flange 21. An ear 44 is provided on the plate 39 which is engageable against the end of the flange 21. Thus the bearing plate is firmly supported, but is free to move toward or away from the arms and l I.

A friction washer 45 is interposed between the bearing plate 39 and the arm I8 and a pair of friction washers 48 and 4! are provided between the arm IE and the arm II. A nut 49 is provided on the pivot bolt [2, which nut tightens against the arm H. Thus the bolt i2 is heid from rotation relative to the arm ii and the bearing plate 39 and therefore the nut has no tendency to loosen during operation of the knee joint.

In accordance with the patent statutes, I have described the principles of construction and operation of my window fastener, and while I have endeavored to set forth the best embodiment thereof, I desire to have it understood that obvious changes may be made within the scope of the following claims without departing from the spirit of my invention.

I claim:

1. A storm window bracket for connecting a pivotally supported window and its frame, the fastener comprising a pair of pivotally connected arms, one of which is pivotally connected to the window and the other of which is pivotally connected to the frame, said arms being connected by means of a pivot bolt extending through both of said arms, friction washers encircling said pivot bolt between said arms, a flange on one of said arms along the longitudinal edge thereof and bent to extend past the other arm, a flange on said other arm along a longitudinal edge thereof and bent to extend over the end of said one arm, the ends of said flanges being engageable in end abutting relation as said arms move toward aligned position, a bearing plat extending parallel to said arms, an aperture in said bearing plate through which said pivot bolt extends, a friction washer on said pivot bolt between said bearing plate and the other of said arms, said bearing plate having an elongated edge designed to engage against the flange of said first named arm.

2. a storm window bracket for connecting a pivotally supported window and its frame, the fastener comprising a pair of pivotally connect;d arms, one of which is pivotally connected to the window and the other of which is pivotally connected to the frame, said arms being connected by means of a pivot bolt extending through both of said arms, friction washers encircling said pivot bolt between said arms, a flange on one of said arms along the longitudinal edge thereof and bent to extend past the other arm, a flange on said other arm along a longitudinal edge thereof and bent to extend over the end of said one arm, the ends of said flanges being engageable in end abutting relation as said arms move toward aligned position, a bearing plate extending parallel to said arms, an aperture in said bearing plate through which said pivot bolt extends, a friction washer on said pivot bolt between said bearing plate and the other of said arms, said bearing plate having an elongated edge designed to engage against the flange of said first named arm, a transverse notch in the flange of said one arm, and a tongue on said bearing plate engageable in said notch.

3. A storm window bracket for connecting a pivotally supported window and its frame, the fastener comprising a pair of pivotally connected arms, one of which is pivotally connected to the window and the other of which is pivotally'c'onnected to the frame, said arms being connected by means of a pivot bolt extending through both of said arms, friction washers encircling said pivot bolt between said arms, a flange on one of said arms along the longitudinal edge thereof and bent to extend past the other arm, a flange on said other arm along a longitudinal edge thereof and bent to extend over the end of said one arm, the ends of said flanges being engageable in end abutting relation as said arms move toward aligned position, a bearing plate extending parallel to said arms, an aperture in said bearing plate through which said pivot bolt extends, a friction washer on said pivot bolt between said bearing plate and the other of said arms, said bearing plate having an elongated edge designed to engage against the flange of said first named arm, a transversed notch in the flange of said one arm, a tongue on said bearing plate engageable in said notch, and a second tongue on said bearing plate engaging the end of the flange on said first named arm. 4. A storm window bracket for connecting a pivotally supported window and its frame, the fastener including a pair of arms pivotally connected together, one of said arms being pivotally connected to the window and the other of said arms being pivotally connected to the frame, one of said arms having a longitudinally extending flange along an edge thereof to provide an arm of angular section, a bearing plate having an elongated edge designed to engage along a surface of said flange, said bearing plate extending parallel to said arms and having an aperture therethrough through which a pivot bolt con necting said arms may extend, a notch in said flange, and a projection on the elongated edge of said bearing plate engageable in said notch. HAROLD WALTER FALK.

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

UNITED STATES PATENTS Number Name Date 2,288,540 Olson June 30, 1942 2,361,056 Quinn, Oct. 24:, 1944