Search Images Maps Play YouTube News Gmail Drive More »
Sign in
Screen reader users: click this link for accessible mode. Accessible mode has the same essential features but works better with your reader.


  1. Advanced Patent Search
Publication numberUS3075256 A
Publication typeGrant
Publication dateJan 29, 1963
Filing dateFeb 10, 1961
Priority dateFeb 10, 1961
Publication numberUS 3075256 A, US 3075256A, US-A-3075256, US3075256 A, US3075256A
InventorsJay C Nofziger
Original AssigneeJay C Nofziger
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Mounting for vertically slidable closures
US 3075256 A
Abstract  available in
Previous page
Next page
Claims  available in
Description  (OCR text may contain errors)

Jan. 29, 1963 J. c. NOFZIGER 3,075,256


2 Sheets-Sheet 1 ATTORNEY Jan. 29, 1963 Filed Feb. 10, 1961 J. c. NOFZIGER 3,075,256 MOUNTING FOR VERTICALLY SLIDABLE CLOSURES 2 Sheets-She et 2 I I I" 2 iii? 6 I :15 n II II: I 1' I 1 I c:::: A g g 7 I w I I I f f (3 11 4 121516. 11 I L l I 7 7 :16 Ir L 10 6/9 INVENTOR BY f V ATTORN EY nited gteeifig I kWh 3 39 5,256 Patented Jan. 29, l3

This invention relates to a mounting for Vertically slidable closures such as windows, panels and similar structures, and has as its primary object the provision of a mounting for vertically slidable closures in which th closure is frictionally supported and held against movement under its inherent weight in any position within its range of travel.

Another object is to provide a sliding closure mounting in which the closure is supported in vertical guide-ways and releasably held against movement in various adjusted positions by the action of serpentine or corrugated tensioned plate springs bearing between the closure and the guide-ways, wherein the springs are so arranged as to serve the purpose of weather-strips and also serve to obviate the use of parting beads between the side margins of overlying sash as commonly employed in double hung window construction.

Another object is to provide a closure mounting of the above character in which the springs may be readily re moved and replaced and wherein the tension of the supporting springs may be adjusted to suit varying requirements.

A further object is to provide a mounting which is especially applicable for use in assemblying double-hung vertically slidable windows and which is of such compactness as to render it particularly adapted for use in the equipment of doors with double hung sash.

With the foregoing objects and advantages in view together with such other objects and advantages as may subsequently appear the invention is carried into effect as hereinafter described and claimed and illustrated in the accompanying drawings in which:

FIG. 1 is an isometric view of a double hung window embodying the invention;

H6. 2 is a diagram in section and elevation of a fragmentary portion of a window side-rail and its guide-way as spaced apart relative to each other preliminary to their assemblage;

KG. 3 is a view similar to FIG. 2 showing the window side-rail and guide-way as assembled;

HG. 4 is a perspective view of the supporting platespring as detached;

. ,a f FIG. 5 is a view in front elevation of a WIHdOW illustrating a manner of mounting a sash, and

FIG. 6 is a horizontal section taken on the line 6-6 of FIG. 5.

Referring to the drawings more specifically A indicates generally an upright vertically slidable window sash embodying side-rails 5-5 having outer side faces 66 each of which has a channel 7 extending longitudinally throughout the length thereof. The sash A is flanked on itsside by a pair of upstanding frame members 8-8 having inner faces 99 presented to the side faces 66 in proximity thereto, there being a gap ll) between each side of the closure and the inner face 9 of the adjacent frame member 3 to permit vertical sliding movement of the sash A relative to the frame members 8$ in a usual manner.

Each of the frame members 6- 8 has a longitudinally extending channel 11 in the inner face thereof which channel 11 is arranged opposite the channel 7 in the adjacent side face 6 of the sash A.

The channels 7 and 11 are of differing widths with the channels 7 in the side rails of the sash wider than the channels 11 in the frame members. The channels 7 and 11 have parallel side walls and are arranged so that the side walls of the narrower channels 11 are spaced inwardly relative to the side walls of the channels 7. An elongated serpentine or corrugated plate spring 12 is mounted in each pair of the channels 7-11 with the springs extending throughout the lengths of the channels 7; the spring 12 spanning the gap 10 between the side rails of the sash and the adjacent frame members to thereby serve as weather strips. The inner marginal portions of the springs 12 loosely extend into the channels 7 while the outer marginal portions thereof are crowded into the channels 11 with the opposite faces of adjacent corrugation thereof slidably abutting the side walls of these channels under tension developed by contraction of the springs in the direction of the thickness thereof.

As a means for detachably connecting the springs 12 to the sash A so that on movement of the sash the springs will move therewith, a screw 14 is engaged with each of the side rails 5 and passed through an opening 15 intermediate the ends of the spring 12 contained in the channel 7 so as to hold the spring against bodily movement relative to the side rails 5 yet permit of longitudinal expansion or elongation of the mounted springs relative to the rails.

To facilitate assemblage of the springs 12 in the channels 7, the side rails have screw receiving holes is formed on one side thereof at points therein opposite the position to be occupied by the openings 15 in the springs when initially positioned in the channels 7, whereby the openings 15 may be readily aligned with the holes 16 preliminary to application of the screws 14.

The recited construction is subject to being assembled in several ways of which that shown in FIGS. 5 and 6 is an example. In this instance the frame members 8-8 are permanently placed vertically as in a window frame. When it is desired to mount the sash A in the frame, the springs 12 are initially crowded edgewise into opposed portions of the channels 11 either at the lower portions thereof, or at their upper portions as shown in FIG. 5, the springs being held in place by their frictional engagement with the side walls of the channels 11. The sash A is then positioned vertically between the frame members 83 with ends of the channels 7 presented to ends of the springs 12, the sash being here shown as positioned in the lower portion of the window frame with the upper ends of the channels 7 presented to the lower ends of the springs 12. The sash is then advanced lengthwise of the springs 12 with the channels 7 freely moving astride the projecting marginal portions of the springs by reason of the clearance between the opposite faces of the springs and the sides of the channels 7 afforded by the widths of the channels 7.

On the holes 16 in the sash being thus brought in register with the openings 15 in the springs 12 the screws 14 are set in place. The sash may be readily removed from its frame by first adjusting it to a fully closed Or open position and disengaging one of the anchor screws 1 Then, by lifting or lowering the sash in an opposite direction, the anchorless spring will remain stationary in the narrower channel 11, exposed for easy removal. Even though the spring in the opposite side rail 7 of the sash remains anchored, the whole sash can be readily removed when the opposite spring is no longer in place.

In some instances preliminary to placing the sash be tween the frame members one of the springs 12 may be initially positioned in the channel 11 in one of the frame members so that its projecting marginal portion may then be inserted transversely into the channel 7 on one side rail of the sash in positioning the latter between the frame members. The other spring 12 is then positioned in the portion of the other channel 11 extending either above or below the sash whereupon the sash is advanced to dispose the other of its channels 7 in overlying relation to said other spring 12 and the anchoring screw is engaged therewith, as above described.

Where either or both of the f-ramemembers are free and adapted to be assembled on the sash from opposite side edges thereof, the springs 12 may be set in the grooves 11, whereupon the then projecting marginal portions of the springs may be inserted transversely into the channels 7 on advancing the frame members into their assembled positions adjacent the side margins of the sash.

Irrespective of the mode of. assembling the sash in the frame members with the springs disposed in the channels 7-11 the springs will then be anchored in the sash by the screws 14 as before stated.

After elfecting assemblage of the sash.A,,fran1e members 8-3 and springs 12-l2, the sash may be raised and lowered carrying the springs therewith with the outer most portions of the opposed faces of the springs frictionally engaging the opposed side walls of the channels 1111.

This frictional engagement must necessarily be such as to oppose the weight of the sash and thus serve to hold the sash against vertical movement relative to the frames 8-8 in any position to which the sash is moved. By varying the curvatures of the serpentine or corrugated formation of the springs 12, which may be accomplished by bending the springs, the magnitude of the frictional engagement of the springs may be varied more or less as occasion may require; the springs being readily removable on disengaging the screws-l4 and then withdrawing them from the channels 7- 11, then after eifecting the requisite adjustment they may bereplaced as before described.

By forming the channels channels 11 clearance space is of the portion of the springs therein which serves the double purpose of facilitating assembling the springs in 7 of greater width than the the channels 7 and insuring against cramping of thesprings between the sidewalls of-the channel 7 such as would prohibit expansion of the corrugations under pressure against the side walls of the channels 11 and thereby render the springs ineffectual in supporting the sash.

By the employment of a the spring 12 to the sash, mounting and detachment of the spring may be readily effected, furthermore the spring in being secured by a single fastening is free to be elongated or contracted longitudinally as occurs on varying the curvature of its contour as occurs when crowding the spring into the narrow channels 11. The channels Gil constitute guideways' and the outer marginal portions of the springs 12 constitute tongues slidable therein so that when applied to a double hung window as shown in FIG. 1 the employment of a parting head between the sash is obviated.

While the invention has been specifically shown and described as applied to window sash it is equally applicable in the mounting of other forms of vertically slidable closures capable of having longitudinal spring receiving channels on its side edges, and accordingly the invention is not limited'to the exact structure shown but embraces such modifications as come within the meaning and scope of the appended claims.

afforded on opposite sides single screw 14 in connecting I claim:

1. in a mounting for a vertically slidable closure having parallel side faces, a pair of upright frame members having inner sides presented to and paralleling said side faces adjacent thereto, said closure side faces and the inner sides of the adjacent of said frame members having opposed longitudinal channels, the channels on said closure side faces being of a width slightly exceeding the width of the channels on the inner sidesof said frame members, and an elongated corrugated plate spring extending longitudinally in the channel on each of said closure side faces having a corrugated outer side portion extending into the channel in the adjacent of said frame members in longitudinally slidable frictional engagement with said frame members at the sides of the channel therein, and means detachably connecting said springs to said closure.

2. The structure called for in claim l'in which said connecting means engages said spring only at one point in the length thereof whereby the spring is free to longitudinally elongate or contract on varying the curvature of its corrugation.

3'. In a mounting for a vertically slidable closure ernbodying a pair of parallel side rails with outer edges each having a longitudinal channel thereon, an upright frame member paralleling each of said side rails having an inner face presented to the outer edge of the adjacent of said rails contiguous thereto, said inner face having a longitudinal channel arranged opposite the channel in the adjacent side rail, a corrugated plate spring having a corrugated inner marginal portion loosely extending longitudinally within the channel in each ofsaid side rails, means detachably connecting said springs intermediate their ends to said side rails whereby the end portions of said springs are free to elongate or contract relative to each other, said springs having corrugated'outer marginal portions extending into the channels in said frame members, said last named channels having side walls and said springs being arranged with the opposed corrugations thereof abutting said side walls in longitudinally slidable frictional engagement therewith.

4. In a slidable closure mounting, a closure having opposed side faces each having a longitudinal channel therein, a frame member adjacent each of said side faces having a longitudinal channel extending opposite said first named channel, an elongated serpentine spring having opposed corrugated margins extending into opposed of said channels, the channels in said side faces being of widths greater than the widths of the channels in said firame members, and each of said channels having parallel side walls, the margins of said springs in the channels in said frame members being in longitudinally slidable frictional engagement with the side walls thereof and the other margins of said springs extending into the channels in said side faces being spaced from the side walls thereof, and means removably connecting said springs to said closure.

References Cited in the file of this patent UNITED STATES PATENTS

Patent Citations
Cited PatentFiling datePublication dateApplicantTitle
US219809 *Feb 11, 1878Sep 23, 1879 Improvement in windows
US713175 *Jun 20, 1902Nov 11, 1902Joseph Andrew ThainWeather-strip.
US809990 *Oct 5, 1904Jan 16, 1906John H ShepherdWindow-sash.
US1518374 *Feb 23, 1923Dec 9, 1924Frank VansantWindow sash
Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US7591103Dec 15, 2005Sep 22, 2009Milgrad Manufacturing, Inc.Window sash tilt latch
US20070137109 *Dec 15, 2005Jun 21, 2007Milgard Manufacturing, Inc.Window sash tilt latch
U.S. Classification49/438, 292/76
International ClassificationE06B3/44
Cooperative ClassificationE06B2003/4446, E06B3/4407, E06B3/44
European ClassificationE06B3/44