US2800687A

US2800687A - Spring loaded guide track control assembly for double-hung windows

Info

Publication number: US2800687A
Application number: US532583A
Authority: US
Inventors: Robichau Edward Earl
Original assignee: Individual
Current assignee: Individual
Priority date: 1955-09-06
Filing date: 1955-09-06
Publication date: 1957-07-30
Anticipated expiration: 1974-07-30

Description

y 1957 E. E. ROBICHAU SPRING LOADED GUIDE TRACK CONTROL ASSEMBLY- FOR DOUBLE-HUNG wmopws Filed Sept. 6, 1955 IN V EN TOR. E DWARD EARL ROB/CHAU rromvsr United States atent 2,800,687 SPRING LOADED GUIDE TRACK coNTRoL ASSEMBLY FOR DOUBLE-HUNG WINDOWS Edward Earl Robichau, sari Diego, Calif. 7 Application September '6 i955, Serial No. 552,583 Claims. c1. at -s2 My invention relates to impfovenieiit's in spring loaded guide track assemblies for each of a pair of double hung windows; and its objects are to secure improved operational control of double-hung windows through novel means for guiding and maintaining their alignment and for obtaining better working clearance of the sashes thereof from the adjacent frames; to dispense with conventional sash weights, cords, pulleys and balances; to prevent binding of the sashes against each other 01f against the parting strip by means of the provision of elements effecting a better working clearance between the sashes; to prevent canting and jamming of the window sashes through specially constructed and adjusted buffer springs afiixed to said sashes and positioned to make engaging contact with the channels of the guide tracks and spaced recesses therein; to reduce window rattling and prevent drafts through the utilization of lesser working clearance in each guide track assembly and; applied spring pressure thereto; to construct each of the guide track assemblies with a channeled housing, a buffer spring afiixed thereto, and a track engaging with said bufi'er spring and channel of said housing, all of which parts are of metal, the said housing being secured to the outside face of the sash and the said track being secured to the adjacent Window frame; to render the said parts readily accessible outside of the sash for inspection, adjustment, replacement, renovation, removal, and repair; and in general to provide a spring loaded guide track control assembly for double hung windows, which is simple, compact and economical of construction, efficient in action and of long life and durability. My invention further consists of other novel features of construction; and combinations and arrangements of elements and parts illustrated in the drawing, and as hereinafter more specifically described and claimed.

My improved a ssembly is especially designed to be incorporated in the conventional form of double-hung wooden sash windows, particularly those designed to permit the disposal of weights, balances or like accessories. Being afiixed to the outside faces of the sashes and not recessed and confined within the body thereof or depressed within inaccessible adjacent parts of the window frame, the parts of said assembly are at all times readily accessible for inspection, removal, replacement or repair. Also, all of the parts of said assembly being of metal, and all sliding engagements of said parts being limited to metal contacts, and the sashes being separately suspended solely by and through the construction, connection and operation of said parts, all frictional contacts of wood to wood of said sashes are avoided, and great freedom of movement of said sashes is thereby accomplished The present application is a continuation in part and includes substantially all of the disclosure presented in my earlier copending application, Serial No. 471,746, filed November 29, 1954, which has now become abandoned and entitled Spring Loaded, Guide Track Con- 2,800,687 Patented July 30, 19 57 trol for Double Hung Windows, and I reserve such date for all common subject matter set forth therein.

Attention is hereby directed to the accompanying drawing, illustrating a preferred form of my invention, in which drawing, similar numerals of designation refer to similar parts throughout the several views and in which- 7 V p Figure 1 is a horizontal sectional View of a pair of wooden sashes of a double-hung window, showing the application to the outside face of each of said sashes and the window frame of one of the metallic spring loaded guide track assemblies herein referred to;

Fig. 2 is a side sectional view of the sashes and adjac'ent parts shown in Fig. 1, looking in the direction indicated by the arrows 2-2, and

Fig. 3 is a side elevationary view of the assembly shown in Fig. 1, looking in the same direction as Fig. 2.

Referring to the drawing, the double-hung window there shown is conventional in form, and includes the lower or inside sash 4, the upper or outside sash 5, parting strip 6, and lights 7 and 8. To each of said sashes in the manner shortly to be described is firmly secured one of the guide track assemblies 9 and 10, embodying my invention, and each of which is similar in construction to,- and a counterpart of, the other.

Each of said assemblies accordingly may be described as comprising the channeled housing 11, undulating flat buffer tension spring 12, double 13 and guide track 14. The housing 11 is in the form of an elongated strip ex: tending vertically over the outer face of the sash, preferably from the top to the bottom thereof, and having at one side a wide flange 15 secured to said sash by flat headed screws 16, extending through openings in said flange provided therefor, and evenly spaced apart; the opposite side of said housing having formed therein and co-extensive therewith, the channel 17 located in parallel relation with the adjacent edge of said sash. Inserted within said channel is the tension spring 12, the ends .18 and 19 of which are secured to the bottom of said channel by the rivets 20. As shown in Fig. 2, the said said spring is formed with the outwardly projecting

bows

21 and 22; the middle portion 23 of said spring curving inwardly and positioned to contact the end of the adjusting screw 24 in threaded engagement with the tapped opening 25 extending through the bottom of said channel, and through the double 13. Through adjustment of the screw 24, the outward extension or retention of the

bows

21 and 22 may readily be regulated in the manner hereinafter to be described.

The guide track 14, of each of said assemblies is in the form of a flange rail, the longitudinally extending head 25, web 27 and flange 28, all of which are secured to the face of the window frame or casing 29 by flat headed screws 30 extending therethrough; the said rail being shaped and positioned to be inserted within and to make sliding engagement with the channel 17, and to be coextensive top to bottom therewith. Preferably, the longitudinally extending head 26 of said rail is formed at spaced recurrent intervals with the arcuate recesses 31 and 32 shaped and located to receive and to make engaging contact with the bow 21 of the spring 12, upon the vertical movement of the housing to which said spring is attached. Preferably, the lower portion of each of said recesses is a pocket formed to retard the downward movement of the bow contacting therewith upon becoming seated therein, but has its upper portion merging below into a tapered approach thereto thereby permitting the said how gradually to be compressed upon the upward movement of the sash, and thereupon allowing said bow readily to be smoothly released from its engaging contact with said lower portion of the recess. (See Fig. 2.)

ice

Since all of the parts of my improved assembly are of metal, and attached to the outside faces of the wooden sashes in the manner above described, and friction confined to contacting metallic parts while the sashes are being raised or lowered, clearance is maintained at'all times between the adjacent wooden faces of said sashes and between the wooden edge portions of said sashes and adjacent wooden sides of the frames, and all frietion wood to wood avoided. One advantage, of this form of construction is that it permits the painting of the inside surface of the frame so that thereafter such paining will not be marred, scratched or defaced by frictional contacts of the opposed wooden surfaces of adjacent sashes; all such contactsbeing avoided as aforesaid. Also, the extended walls of the channel 17 of the housing 11, in close clearance from the sides of the guide track 14, and the sides of the tension spring, tends to eliminate window rattling and'to shut out drafts now generally present in conventional. double windows. The buffer springs12 together with the'bow 21, hearing against the extended head of the rail forming the guide track 14, and the arcuate recesses 31 and 32 thereof, limit the side motion of the sash, and tend to bring about and preserve the undeviating movement up and down of said sash. These springs and recesses, therefore, are also provided, in order to attain ease of operation and a minimum amount of spring pressure, and to furnish selective definite window opening positions.

My invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiment as above set forth is therefore to be considered in all respects as illustrative and not restrictive, the scope of my invention being indicated by the appended claims rather than by the foregoing description, and all changes which may come within the meaning and range of equivalency of the claims are therefore intended to be embraced there- 1. In a spring loaded guide track assembly for doublehung sashes, the combination of an extended metallic channelled'housing; means for securing said housing to the outside face of one of said sashes, a longitudinally extending guide-track co-extensive with said housing and secured to the window casing in sliding engagement with the channel of said housing; and a fiat tension spring secured to the bottom of said channel, said spring having projecting bows in sliding frictional contact with said guide-track and an inwardly extending bow adjustably secured to the bottom of said channel; said guide-track having therein recesses shaped to receive said projecting bows when moved in contact therewith; all of the parts of said assembly being of metal, and all sliding engagements of the sashes being limited solely to metal contacts of said assembly.

2. The subject matter of claim 1, the bottom portion of each of said recesses being a curved pocket retard- What I claim and desire to secure by Letters Patent is:'

ing the downward movement of'the bow contacting therewith upon becoming seated therein, and the upper portion of each of said recesses merging into a tapered approach thereto from above, thereby permitting gradual compression of the bow upon upward movement thereof and smooth release from engaging contact with the lower portion of its said recess.

3. In a spring loaded guide track assembly for doublehung sashes with wooden sashes enclosed by a window casing, the combination of an extended metallic channelled housing; means for securing said housing to the outside face of one of said sashes; a longitudinally extending guide-track co-extensive with said housing and secured to the window casing in sliding engagement with the channel of said housing; and a flat tension spring secured at its ends to the bottom of said channel, said spring having projecting bows in sliding frictional contact with said guide-track and an inwardly extending bow adjustably secured to the bottom of said channel; all of the parts of said assembly being of metal, and all sliding engagements of the sashes being limited to metal contacts, whereby the suspension of said sashes is effected solely by said assembly and contacts wood to wood avoided.

4. In a spring loaded guide track assembly for doublehung sashes with wooden sashes enclosed by a window casing, the combination of an extended metallic channelled housing; means for securing said housing to the outside face of one of said sashes; a longitudinally extending guide-track co-extensive with said housing and secured to the window casing in sliding engagement with the channel of said housing; and a flat tension spring secured at its ends to the bottom of said channel, said spring having projecting bows in sliding frictional contact with said guide-track, and an inwardly extending bow ad: justably secured to the bottom of said channel; said guide-track having therein recesses shaped to receive said projecting bows when moved in contact therewith; all of the parts of said assembly being of metal, and all sliding engagements of the sashes being limited to metal contacts, whereby the suspension of said sashes is effected solely by said assembly and contacts wood to wood avoided.

5. The subject matter of claim 4, the bottom portion of each of said recesses being a curved pocket retarding the downward movement of the bow contacting therewith becoming seated therein, and the upper portion of each of said recesses merging into a tapered approach thereto from above, thereby permitting gradual compression of the bow upon upward movement thereof and smooth release from engaging contact with the lower portion of its said recess.

References Cited in the file of this patent UNITED STATES PATENTS 1,186,139 Shipley June 6, 1916