US2303129A - Window construction - Google Patents

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Publication number
US2303129A
US2303129A US311766A US31176639A US2303129A US 2303129 A US2303129 A US 2303129A US 311766 A US311766 A US 311766A US 31176639 A US31176639 A US 31176639A US 2303129 A US2303129 A US 2303129A
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Prior art keywords
sashes
window
guide
tongues
sash
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Expired - Lifetime
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US311766A
Inventor
George J Kurtz
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Pilkington North America Inc
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Pilkington North America Inc
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Priority to US311766A priority Critical patent/US2303129A/en
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Publication of US2303129A publication Critical patent/US2303129A/en
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    • EFIXED CONSTRUCTIONS
    • E06DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06BFIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B3/00Window sashes, door leaves, or like elements for closing wall or like openings; Layout of fixed or moving closures, e.g. windows in wall or like openings; Features of rigidly-mounted outer frames relating to the mounting of wing frames
    • E06B3/32Arrangements of wings characterised by the manner of movement; Arrangements of movable wings in openings; Features of wings or frames relating solely to the manner of movement of the wing
    • E06B3/34Arrangements of wings characterised by the manner of movement; Arrangements of movable wings in openings; Features of wings or frames relating solely to the manner of movement of the wing with only one kind of movement
    • E06B3/42Sliding wings; Details of frames with respect to guiding
    • E06B3/44Vertically-sliding wings
    • EFIXED CONSTRUCTIONS
    • E06DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06BFIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B3/00Window sashes, door leaves, or like elements for closing wall or like openings; Layout of fixed or moving closures, e.g. windows in wall or like openings; Features of rigidly-mounted outer frames relating to the mounting of wing frames
    • E06B3/04Wing frames not characterised by the manner of movement
    • E06B3/26Compound frames, i.e. one frame within or behind another
    • E06B3/2605Compound frames, i.e. one frame within or behind another with frames permanently mounted behind or within each other, each provided with a pane or screen
    • EFIXED CONSTRUCTIONS
    • E06DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06BFIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B3/00Window sashes, door leaves, or like elements for closing wall or like openings; Layout of fixed or moving closures, e.g. windows in wall or like openings; Features of rigidly-mounted outer frames relating to the mounting of wing frames
    • E06B3/04Wing frames not characterised by the manner of movement
    • E06B3/26Compound frames, i.e. one frame within or behind another
    • E06B3/2605Compound frames, i.e. one frame within or behind another with frames permanently mounted behind or within each other, each provided with a pane or screen
    • E06B2003/261Frames made of wood
    • EFIXED CONSTRUCTIONS
    • E06DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06BFIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B3/00Window sashes, door leaves, or like elements for closing wall or like openings; Layout of fixed or moving closures, e.g. windows in wall or like openings; Features of rigidly-mounted outer frames relating to the mounting of wing frames
    • E06B3/32Arrangements of wings characterised by the manner of movement; Arrangements of movable wings in openings; Features of wings or frames relating solely to the manner of movement of the wing
    • E06B3/34Arrangements of wings characterised by the manner of movement; Arrangements of movable wings in openings; Features of wings or frames relating solely to the manner of movement of the wing with only one kind of movement
    • E06B3/42Sliding wings; Details of frames with respect to guiding
    • E06B3/44Vertically-sliding wings
    • E06B2003/4438Vertically-sliding wings characterised by the material used for the frames
    • E06B2003/4446Wood

Description

' Nov. 24, 1942. G. J. KURTZ WINDOW CONSTRUCTIQN 3 Sheets-Sheet 1 Filed Dec. 30, 1939 3nnentor GEORGE 0/, KuPTz.

(Ittorneg Nov. 24, 1942. a, J, KuR-rz wmnow cousmucnon Filed Dec. 30, 1939 I 1. Id

3 Sheets-Sheet 2 3maentor GEGEGE cl KuETz.

- (It tomeg Patented Nov. 24, 1942 4 WINDOW CONSTRUCTION George J. Kurtz, Chicago, Ill., assignor to Libbey- Owens-Ford Glass Company,

corporation of Ohio Toledo, Ohio, at

Application December 30, 1939, Serial No. 311,766

3 Claims.

The present invention relates broadly to windows in general and more particularly to an improved auxiliary window construction adapted to be removably associated with the conventional permanent window.

It has been heretofore customary to position the ordinary storm windows outwardly of the regular permanent windows and also to install them from the outside of the building. procedure is of course objectionable, due to the fact that the usual storm windows are relatively heavy and quite cumbersome to handle, and this This is especially true in the installation of storm windows in large apartment and ofiice buildings.

An aim of this invention is to provide a complete auxiliary window assembly adapted to be arranged inwardly of the regular permanent window and which can be readily and conveniently installed from the inside of the building. Although not limited to any specific use, this invention is of particular utility in connection with the double glazing of relatively large buildings, as it effectively overcomes one of the principal objections heretofore advanced against the use of storm windows in tall structures; namely, the dimculty, inconvenience, and expense of installing them from the outside in the fall and taking them down in the spring.

Another object of the invention is the provision of. a complete auxiliary window assembly which can be readily and convenientlyinstalled in the usual window casing from the inside sliding movement are of a novel construction which permits the said sashes to be quickly and conveniently installed in or removed from the frame. I

A still further object of the invention is the provision of an auxiliary window of rugged, strong, and simple construction, relatively inexpensive to manufacture, and which may be assembled and installed with a minimum amount of time and labor.

Other objects and advantages of the invention will become more apparent during the course of the following description, when taken in connection with the accompanying drawings.

thereof to present a neat, attractive appearance vision of an auxiliary window embodying a frame having relatively slidable upper 'and lower sashes removably mounted therein, together with novel means for guiding said sashes during sliding movement thereof and for effectually retaining them at any desired level of their sliding range without necessitating the use of counterweights or other counterbalancing devices.

A further object of the invention is the provision of an auxiliary window wherein the means for guiding and retaining the sashes in their In the drawings, wherein like numerals are employed to designate like parts throughout the same:

Fig. 1 is a front view of an auxiliary window assembly constructed in accordance with the invention;

Fig. 2 is a vertical transverse section throughv the auxiliary window showing it associated with a regular permanent window;

Fig. 3 is a horizontal transverse v section through the auxiliary window taken substantially on line 3-3 of Fig. 1;

Fig. 4 is a perspective sectional view of a portion of one of the stiles;

Fig, 5 is a modified type of means for sealing the meeting rails of the sashes;

Fig. 6 is a vertical transverse section through a modified type of auxiliary window also embodying the invention;

Fig. 7 is a horizontal section taken substantially on line 1-1 of Fig. 6;

Fig. 8 is a vertical section taken substantially on line 88 of Fig. 7; and

Fig. 9 is a view similar to Fig. 7 but showing another type of construction.

With reference now to the drawings, and particularlyto Figs. 1 to 5 inclusive, the numeral ll! designates a conventional window casing in which is mounted the usual double-hung window H comprising the upper and lower relatively slidable sashes l2 and i3 glazed with the panes of glass it and I5 respectively.

Also mounted within the casing I0, inwardly of the permanent window II, is the improved auxiliary window It provided by the present invention. The auxiliary window 18 comprises a rectangular frame including the head jamb l1, vertical side jambsv l8 and i9 and asill member 20. Arranged within the frame are the relatively slidable upper and lower sashes 2| and 22 glazed with the panes of glass 23 and 24 respectively.

. When installing the auxiliary window within the window casing ID. the sashes 2| and 22 are first preferably mounted within the frame in the manner hereinafter described. and the assembly then inserted into the casing from the inside thereof and secured in place by screws or the like 25.

As illustrated in Fig. 2, the lower sash 22 of the auxiliary window is arranged forwardly of the upper sash 2|, with the horizontal meeting rails 25 and 21 of the upper and lower sashes respectively overlapping one another. Any suitable means may be provided for sealing the meeting rails 28 and 21 to provide a weather-tight joint. For example, the inner adjacent faces of the lower rail 28 of the upper sash and the upper rail 21 of the lower sash may be oppositely rabbeted as at 28 to provide complemental inter-engaging portions which form a tight seal (Fig. 2). On the other hand, as shown in Fig. 5, the bottom rail 28 of the upper sash may be provided with a strip of insulating material 29 and the upper rail 21 of the lower sash with a strip of insulating material 30; the free edge portions of the two strips being turned in opposite directions as at 3| and 32 respectively, so that upon closing of the sashes they interlock with one another to provide a weather-proof seal.

As stated above, the upper and lower sashes 2| and 22 are mounted for vertical sliding movement relative to one another and are readily removable from the frame whenever desired for cleaning, repair, or replacement. To this end, there are carried by the vertical side jambs l8 and I9 of the frame, the hollow metal stiles 33 and 34 respectively. Each stile 33 and 34 is in the form of a vertical channel member which extends throughout the height of the window frame and comprises a back wall 35 and opposite side walls 38 and 31 which terminate in the relatively narrow inturned flanges 38 and 39 respectively, said .flanges being spaced from one another to provide a vertical opening therebetween which faces inwardly of the window. The side jambs 8 and I9 of the frame are preferably rabbeted as at 40 to receive the stiles 33 and 34 which can be secured in place by screws or the like 4|.

Extending between the flanges 38 and 39 of each stile and closing the opening therebetween is a guide plate 42, said plate being formed with the spaced outwardly projecting vertical guide tongues 43 and 44 which are adapted to be received within vertical grooves 45 and 48 in the side rails 41 and 48 of the upper and lower sashes 2| and 22 respectively. To facilitate the sliding movement of the sashes upon said tongues and also minimize wear, the grooves 45 and 48 in said sashes may be provided with metal linings 49 and 50 respectively. As shown in Fig. 3, the guide tongues 43 of the opposed guide plates 42 are adapted to be received within the grooves 45 in the upper sash, while the tongues 44 are adapted to be received within the grooves 48 in the lower sash.

The opposite marginal edge portions 5| and 52 of each guide plate 42 are received behind the flanges 38 and 39 of the respective stile 33 or 34. For the purpose of urging the respective guide plate 42 outwardly to maintain the tongues thereof'within the grooves in the sashes there is arranged within each stile a spring member 53. This spring member consists of a corrugated metal strip extending vertically within the stile and of such formation that every other ridge 54 thereof bears against the guide plate 42 while the alternate ridges 55 bear against the back wall 5 35 of the stile. In this way, the spring member serves to normally urge the guide plate '42 outwardly to maintain the tongue portions thereof in engagement with the sashes. The marginal edge portions 5| and 52 of each guide plate, en- 10 gaging flanges 38 and 39 of the respective stile, serve to limit the outward movement of said guide plate. The longitudinal edges of the guide plates are also preferably turned rearwardly as at 53 and 51 and serve to hold the spring members 53 is in place and prevent lateral shifting thereof.

With this construction, the sashes 2| and 22 can be moved vertically relative to one another to any desired position and will be firmly held in adjusted position by the frictional engagement 20 of the tongues 43 and 44 with the metal linings 49 and 53 in the grooves 45 and 45 of the sashes. Therefore, no counterweights or other counterbalancing devices are required to hold the sashes in position. When it is desired to install the 25 sashes 2| and 22 in the frame, it is simply necessary to force the guide plates 42 rearwardly against the action of the spring members 53 so that the sashes can be properly positioned therebetween, whereupon the guide plates will be 0 forced outwardly by the spring members to urge the guide tongues 43 and 44 thereof into the grooves 45 and 45 in the sashes. On the other hand, when it is desired to remove the sashes. it is only necessary to force the guide plates rear- 35 wardly against the action of the spring members whereupon the sashes can be disengaged from the tongues and the removal thereof readily effected. When the guide plates 42 are forced rearwardly, the corrugated spring members 53 of course tend 40 to flatten out and when outward pressure upon the guide plates is removed the spring members automatically return to normal position.

In order to seal the bottom of the lower sash 22 and the top of the upper sash 2|, the head 45 jamb l1 and sill |8 of the frame may. also be provided with metal weather strips 58 and 59 secured in place by screws or the like and provided with tongues 60 and 5| which are received within grooves 82 and 33 in the top rail of the upper sash andbottom rail of the lower sash respectively. These grooves 52 and 83 may also be metal lined if desired.

From the above, it will be seen that there has been provided an auxiliary window which is not only of simple and relatively inexpensive construction but which is also strong and rugged.

Also, that the auxiliary window can be installed I in the regular window casing without the use of unsightly and cumbersome hangers or other supporting means so that it may be installed and removed readily and conveniently with a minimum amount of time and labor. Further, that the auxiliary window can be installed in the usual window casing from the inside thereof to present a neat, attractive appearance. If preferred, instead of making the auxiliary window out of a combination of wood and 'metal it can be made entirely of metal with the various sections being preferably of extruded stock. In such case, the wooden frame of the auxiliary window may be omitted so that the metal stiles 33 and 34 constitute the sides of the frame and the metal strips 58 and 59 the top and bottom thereof respectively. If desired, the top and bottom members 4, the upper and lower sashes are adapted to be of the frame could also be of the same construction as the stiles 38 and 84. I

In Figs. 6, v, and a is illustrated a modified auxiliary window construction. 'I'he..window therein disclosed also includes the relatively slidable upper and lower sashes 64 and. 65 glazed with the panes of glass 86 and 81 respectively.

v Securedjto the inner face of thebottom rail 88 pf the uppc sash 84 is a flat metal-strip 88 having a reversely bent spring portion which is adapted to engage the inner face of the top rail I 1| of the lower sash to provide a weathertight joint between the meeting rails of the upper and lower sashes. The top rail 12 of upper sash 84 is provided with a longtiudinal groove" and a similar groove 14 is provided in the b0 tom rail. 15 of lower sash 85. Inserted within the grooves 18 and I4 is a suitable insulating mate-' rial 18 which engages the top and bottom of the frame containing the sashes to also provide weather-tight joints when the sashes are closed. The upper and lower sashes i l and 65 which,

as stated above, are mounted for vertical sliding movement relative to one another are arranged each stile comprises a vertical channel member extending throughout the height of the window frame and including aback wall 18 and opposite sidewalls 18 and 80 which terminate 'in the relatively narrow i'nturned flanges 8| and 82 respectively. f In this form of the invention, the channel member is provided midway between the opposite side walls '18 and 80 with a substantially T-shaped reinforcing member comprising a web 88 parallel with the side walls 18 and 80 and formed at its outer end with the oppositely directed flanges 84 and.85 disposed in alignment with the inturned flanges 8| and 82. The oppoaitely directed flanges a4 and as cooperate with flanges" and 82 respectively to form vertical openings therebetween which face inwardly of the window.

Arranged between'tlie flanges 8| and 84 is the 0 can be more easily slipped past the guide tongues vertical gu'ide'tongue .88 and a similar guide .tongue 81 is disposed between the flanges 82 and 88 The guide tongues 880i the opposed stiles 11 are adapted to be received within grooves 88 lnthe side members 880i the upper sash 84,

while the guide tongues 81 are received within grooves 80 in the side members of the lower sash .88. To facilitate vertical sliding movement of the sashes and also to minimize wear thereon, the grooves 88 and 80 may be provided with metal linings 8| and 82 respectively. For the purpose of urging the guide tongues 88 and 81' outwardly to maintain them within thegrooves 88 and 80 in the upper and lower sashes, there are arranged within 'each stile the two spring members 88 and 84 similar to the spring member 88. The spring member 83 is arranged behind the guide tongue 86, while the spring member 84 is arranged behind the guide tongue 81. As shown in Fig. 8, each spring member consists of a corrugated metal strip extending vertically within the stile. The guide tongue 88 is provided along its vertical edges with oppositely directed flanges 85 and 86. which engage the flanges 8| and 84 respectively on the stile to limit the outward movement of said tongue Smilar flanges 81 and 88 are carried bythe guide tongue 81 to engage the flanges 82 and 85 respectively on the stile,

With the construction held in desired adjusted position by friction between the guide tongues and the said sashes. However, means may be provided, as shown in Fig. 8, to mechanically hold the sashes in desired adjusted position withoutthe use of counterweights or other cumbersome or expensive hangers. As therein disclosed, the metal linings 8| and 82, for the grooves 88 and in the sashes, and the guide tongues 86 and 81 are provided with .complemental interlocking portions 89 and I00 respectively. These interlocking portions are punched in-the guide tongues and metal linings in the form ofcomplemental protuberances and recesses, with the protuberances I00 in the guide" tongues being received within the recesses 88 in g the metal linings. The protuberances I00 are preferably arranged in series at spaced points vertically oi the guide tongues and one or more be apparent that when therecesses 98 are brought opposite .the protuberances I00, the action of the spring members 83 and 84 will force .the guide tongues outwardly and cause the protuberances to snap into the recesses. When this occurs, the sash will be securely. held in properly adjusted positionand yet can be readily raised or lowered. Thus, upward or-downward pressure upon the sash will simply cause the guide tongues 86 and 81 to be forced rearwardly against the action of the spring members 83 and '84 whereupon the protuberances I00 will be disengaged from the recesses 88. In forming the complemental protuberances and recesses, it is preferred that the guide tongues be first fitted with in the metal linings and the said protuberances and recesses then simultaneously produced by a punching operation.

In order to facilitate the positioning of the sashes 54 and in'place between the stiles 11, the inner edge portions .of the metal linings 9i and 82 for the grooves in the sashes may be rounded as-at |0| and |02 so that the said sashes ances formed on "the guide tongues 88 and 81.

Complemental interlocking portions may also'beemployed in the construction illustrated in 2.

' It --is to be understood that the form. of the invention herewith shown and described is to be taken as the preferred embodiment of the same,

' and that various changes in the shape, size and arrangement of parts may be resorted to without.

departing from the spirit of the invention or the "scope of the subjoined claims.

I claim: I I

1. An auxiliary window structure, comprising.

a rectangular frame, spaced stiles carried by said frame, each stile including a channel member having a. back wall and opposite side walls terminating in relatively narrow inturned flanges spaced from one another to provide a vertical opening therebetween which faces inwardly of the window, a guide plate extending between said flanges and closing the opening therebetween.

illustrated in Figs. 1 to 75 said guide plate being formed with spaced outwardly projecting verticalguide tongues extending substantially the entire length of the respective stile and also having portions received behind the intumed flanges on said stile, upper and lower sashes positioned between said stiles and having grooves receiving the guide tongues therein and upon .which the sashes are relatively slidable, one sash being slidable upon one pair of opposed guide tongues and the other sash upon the other pair of opposed guide tongues, and spring means m ed within each stile engaging the respective guide plate and urging the guide tongues thereof outwardly to maintain them in the groovesinsaid sashes.

' 2. An auxiliary window structure, comprising a rectangular frame, spaced stiles carried by said frame, each of said stiles including a channel member having its open side facing inwardly of the window, a pair of spaced vertical guide tongues carried by each stile and projecting out- 20 wardly therebeyond, upper and lower sashes p0 sitioned between said stile; and having grooves receiving the guide tongues therein and upon which the sashes are relatively slidable, one sash being slidable 'upon one pair of opposed guide tongues and the other sash upon the other pair of opposed guide tongues, spring means arranged within said stiles and urging said guide tongues outwardly to maintain them within the grooves in said sashes, metal linings in the grooves in said sashes, and complemental interlocking protuberancesand recesses formed in said guide tongues and metal linings for holding the said sashes in desired adjusted position. v

3. An auxiliary window structure of the character defined in claim 2. in'which the inner edge portions of the metal linings of the grooves in the sashes are rounded to facilitate the association of said sashes with'the guide tongues.

GEORGE J. KURTZ.

US311766A 1939-12-30 1939-12-30 Window construction Expired - Lifetime US2303129A (en)

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Cited By (25)

* Cited by examiner, ā€  Cited by third party
Publication number Priority date Publication date Assignee Title
US2430772A (en) * 1944-09-02 1947-11-11 Harry A Kammerer Removable sash construction
US2463858A (en) * 1944-11-04 1949-03-08 Chew Bittel Co Window construction
US2583107A (en) * 1948-02-09 1952-01-22 Walter M Krantz Sash construction
US2595419A (en) * 1949-12-02 1952-05-06 Howard A Smith Weatherproofing
US2619690A (en) * 1949-10-14 1952-12-02 American Seal Rite Corp Window or other slidable closure
US2630891A (en) * 1947-02-13 1953-03-10 Zitomer Abe Window structure
US2631336A (en) * 1950-08-04 1953-03-17 Lorant I Weissman Window assembly and sash holder
US2643422A (en) * 1947-10-04 1953-06-30 Prosper L Gottschalk Window construction
US2662255A (en) * 1952-02-18 1953-12-15 Serley Co Removable double hung window sash structure
US2677861A (en) * 1952-06-30 1954-05-11 Leo H Weiss Weather stripping for windows having vertically slidable sashes
US2678477A (en) * 1952-07-11 1954-05-18 Joseph J Russell Composite window structure
US2688165A (en) * 1948-03-15 1954-09-07 American Seal Rite Corp Window or other slidable closure
US2703158A (en) * 1949-12-29 1955-03-01 Gen Bronze Corp Window construction
US2728117A (en) * 1952-09-12 1955-12-27 Keystone Alloys Company Prefabricated window structure
US2735145A (en) * 1956-02-21 Kraesky
US2774997A (en) * 1951-08-02 1956-12-25 Alumatic Corp Of America Sash and sash frames
US2811229A (en) * 1954-08-11 1957-10-29 Thomas L Mcdonough Sash and sash guides for windows
US2828514A (en) * 1956-05-24 1958-04-01 Michael J Nardulli Window structure
US2846734A (en) * 1948-01-02 1958-08-12 Zitomer Abe Window structures
US2885744A (en) * 1957-02-12 1959-05-12 Quaker City Metal Weatherstrip Combined weatherstrip and sash balance
US2907079A (en) * 1955-09-06 1959-10-06 Herbert K Lundgren Window construction
US3022547A (en) * 1959-11-24 1962-02-27 Stegley Windows
US3022546A (en) * 1959-06-12 1962-02-27 William M Nevotti Removable window
US3256641A (en) * 1962-12-20 1966-06-21 Malta Mfg Company Window units
US3360030A (en) * 1965-02-08 1967-12-26 Baer Hans Window and frame structure

Cited By (25)

* Cited by examiner, ā€  Cited by third party
Publication number Priority date Publication date Assignee Title
US2735145A (en) * 1956-02-21 Kraesky
US2430772A (en) * 1944-09-02 1947-11-11 Harry A Kammerer Removable sash construction
US2463858A (en) * 1944-11-04 1949-03-08 Chew Bittel Co Window construction
US2630891A (en) * 1947-02-13 1953-03-10 Zitomer Abe Window structure
US2643422A (en) * 1947-10-04 1953-06-30 Prosper L Gottschalk Window construction
US2846734A (en) * 1948-01-02 1958-08-12 Zitomer Abe Window structures
US2583107A (en) * 1948-02-09 1952-01-22 Walter M Krantz Sash construction
US2688165A (en) * 1948-03-15 1954-09-07 American Seal Rite Corp Window or other slidable closure
US2619690A (en) * 1949-10-14 1952-12-02 American Seal Rite Corp Window or other slidable closure
US2595419A (en) * 1949-12-02 1952-05-06 Howard A Smith Weatherproofing
US2703158A (en) * 1949-12-29 1955-03-01 Gen Bronze Corp Window construction
US2631336A (en) * 1950-08-04 1953-03-17 Lorant I Weissman Window assembly and sash holder
US2774997A (en) * 1951-08-02 1956-12-25 Alumatic Corp Of America Sash and sash frames
US2662255A (en) * 1952-02-18 1953-12-15 Serley Co Removable double hung window sash structure
US2677861A (en) * 1952-06-30 1954-05-11 Leo H Weiss Weather stripping for windows having vertically slidable sashes
US2678477A (en) * 1952-07-11 1954-05-18 Joseph J Russell Composite window structure
US2728117A (en) * 1952-09-12 1955-12-27 Keystone Alloys Company Prefabricated window structure
US2811229A (en) * 1954-08-11 1957-10-29 Thomas L Mcdonough Sash and sash guides for windows
US2907079A (en) * 1955-09-06 1959-10-06 Herbert K Lundgren Window construction
US2828514A (en) * 1956-05-24 1958-04-01 Michael J Nardulli Window structure
US2885744A (en) * 1957-02-12 1959-05-12 Quaker City Metal Weatherstrip Combined weatherstrip and sash balance
US3022546A (en) * 1959-06-12 1962-02-27 William M Nevotti Removable window
US3022547A (en) * 1959-11-24 1962-02-27 Stegley Windows
US3256641A (en) * 1962-12-20 1966-06-21 Malta Mfg Company Window units
US3360030A (en) * 1965-02-08 1967-12-26 Baer Hans Window and frame structure

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