US3021578A

US3021578A - Combination weatherstrip and sash balance and various adjustment means

Info

Publication number: US3021578A
Application number: US580659A
Authority: US
Inventors: Zygmunt J Czubachowski
Original assignee: CAIDWELL Manufacturing Co
Current assignee: CAIDWELL MANUFACTURING Co
Priority date: 1956-04-25
Filing date: 1956-04-25
Publication date: 1962-02-20
Anticipated expiration: 1979-02-20

Description

Feb. 20,1962 2. JQCZUBACHQWSKI 3,021,578

, COMBINATION WEATHERSTRIP AND SASH BALANCE AND VARIOUS ADJUSTMENT MEANS Filed April 25, 1956 4 Sheets-Sheet 1 ATTORN Y Feb. 20, 1962 2. J. CZUBACHOWSKI 3,021,578

COMBINATION WEATHERSTRIP AND SASH BALANCE AND VARIOUS ADJUSTMENT MEANS Filed April 25, 1956 4 Sheets-Sheet 2 Fl G. 6

INVENTOR. 2YGMu/v7 CZUBflC/IOWJK/ -M] V2 1 BY 0 29 FIG. 4 A'rronrqv' 1952 2. J. CZUBACHOWS 3,021,578

COMBINATION WEATHERSTRIP SA BALANCE S Filed April 25, 1956 AND VARIOUS ADJUST T MEAN 4 Sheets-Sheet 3 INVENTOR. zve/wu/vr J. CZUBflGf/owskl F I G. 7 BY "A4TM Feb. 20, 1962 2. J. CZUBACHOWSKI 3,021,578

COMBINATION WEATHERSTRIP AND SASH BALANCE AND VARIOUS ADJUSTMENT MEANS 4 Sheets-Sheet 4 Filed April 25, 1956 FIG 10 INVENTOR. ZYG/WU/VT J czuaAa/ou/Jx/ BY p g ni'ronuev 5 CUMBEYATIGN WEATHERSTREP AND SASH EAL- ANCE AND VARIOUS ADEUSTMENT MEANS Zygmunt 5. Czuhachowslti, Rochester, N.Y., assignor to The Caidwell Manuiacturing Company, Rochester,

N.Y., a corporation of New York Filed Apr. 25, 1956, Ser. No. 580,659 7 Claims. (ill. 2il--52.2)

The present inventionrelates to a weather strip and sash balance in combination, and more particularly to a weather strip used in combination with a novel attachment means adapted to be used with various novel adjustment means for adjusting the length of a tension spring used therein, for the easy lowering and rais ng of a window sash and holding the sash in any positron of adjustment.

Heretofore, combination weather strips and sash balances have been of the construction which proved to be relatively expensive in cost, difficult to mount with respect to the window sash and frame, and arduous in connection with adjusting the spring tension with respect to the various weights and sizes of window sashes. It was found necessary to remove the entire Weather strip, removing, as a result, the sash as well, before the necessary adjustment could be made on the spring in the sash balance in order to obtain the perfect balance desired. Not only the element involved, but also the labor and cost, afiorded various and numerous problems.

It is an object of the present invention to provide a window sash balance having a weather strip which is easily mounted and serves yieldingly to hold the window sash in a weather-tight connection with respect to the window casing.

Another object of this novel device is the provision of a weather strip construction for window casings having a slidably mounted sash balance wherein means for counterbalancing the sash are easily installed, and easily adjustable to counterbalance sashes of various weights and sizes, using the means provided for adjusting the spring member according to need or desire.

A further object of this invention is to provide a weather strip having guideways wherein the sash balance is installed, which eliminate catching or snagging of the spring member and provides a smoother operation of the sash balance with respect to raising and lowering the window sash.

Another advantage of this novel invention is the provision of a sash balance bracket which is easily installed in the window sash, which may be easily removed and replaced when adjustments are needed in the spring member of the sash balance, and which also p-ivotally holds the adjustment means received in the novel weather strip.

Another important object of this combination weather strip and sash balance is the provision of various novel adjustment means which may be employed in connection with a novel sash balance bracket providing easy access to the spring member so that the necessary adjustment may be made without disengaging the entire sash balance from its operative position with respect to the mounted weather strip. These adjustment means are relatively inexpensive, yet provide excellent service.

Other objects, advantages and variations of the present invention will become more apparent from the following detailed description, taken in conjunction with the accompanying drawings showing the various embodiments of the invention.

In accordance with the present invention, a weather strip and adjustable sash balance in combination, for the sliding sashes of window casings, comprise a weather strip formed from aluminum, or other such suitable 3,021,578 Patented Feb. 20, 1962 ice material, having track portions for the receiving of the sides of the sashes, a parting strip, housing channels, tracks, means for securing the top portion of the weather strip, along with the adjustable spring member of the sash balance to the jamb of the window casing, a novel sash balance bracket easily attached and detached from the bottom of the sash, and various adjustment means for adjusting the tension of the spring member of the sash balance according to need without removing the entire weather strip and sash balance from their operative position with respect to the window sash and frame. The weather strip, which retains the sash balance in an operative position with respect to the sashes, is bow-formed, assuring a weather-tight sealing of the sashes, and also provides tracks which not only enclose the spring member of the balance, but also provide a bathe-like obstruction to the pas-sage of air around the sash. The novel sash balance and adjustment means hold the slidably mounted sashes in any position, in an upward or down ward movement,

Preferred embodiments of the present invention are illustrated in the accompanying drawings, in which:

FIGURE 1 is a perspective view of a preferred form of the invention illustrating the operative position of the sash balance using the novel sash balance bracket and one form of the adjustment means used therewith.

FIGURE 2 is an enlarged plan view, front, in part, of a-toothed sash balance bracket having pivotally mounted thereon, a toothed adjustment rod, used in combination with a sash balance.

FIGURE 3 is an enlarged side view of the invention as illustrated in FIGURE 2.

FIGURE 4 illustrates the position of the sash balance bracket and adjustment means in an operative position with respect to a window sash.

FIGURE 5 illustrates a toothed sash balance bracket in an operative position with a window sash, also illustr-ating the use of another novel adjustment means, a formed looped wire used in combination with the toothed sash balance bracket for adjusting the tension of the spring member in a sash balance.

FIGURE 6 illustrates the novel formed-looped wire adjustment in an operative position with respect to a window sash, showing the attachment of an end of the wire inserted in a hole in the bottom of the window sash by means of a pointed end of the wire driven into the bottom of the sash.

FIGURE 7 illustrates another adjustment means, a conventional bead-type chain arrangement, used with a regular arm bracket, for adjusting the length and tension of the spring member in a sash balance used with a weather strip.

FIGURE 8 is an enlarged view, in part, of the beadtype chain held in position by means of a fork in a rod.

FIGURE 9 is a side elevated view of the toothed adjustment rod used in a sash balance and attached to a window sash by means of a conventional arm bracket.

FIGURE 10 illustrates yet another adjustment means, a serrated rod and locking piece arrangement used with a regular arm bracket in combination with a sash balance.

FIGURE 11 is a side view of the embodiment of FIG- URE 10.

Referring now to the drawings, and in particular to FIGURE 1, the vertically extending weather strip, which is indicated as a whole by the reference character 30, is mounted on the jamb 5 or pulley stile of the window frame, at the top portion, as will be more fully explained. The window sashes 7 are of a conventional construction and consist of an outer sash and an inner sash, having grooves 38 located in the sides of the sash members 7. The weather strip 30 comprises an elongated body formed from aluminum, or other such suitable material, having The parting strip 34 and the track portions 32 and 33 v are so shaped as to exert pressure against the sashes 7,

slidably mounted therein between the parting strip 34 and the inwardly bent flanges 31, and to assure a free lateral movement of the sashes 7 in such a way so as to prevent any rattling or binding of the sashes 7 placed therein.

As clearly illustrated in FIGURE 1, the curvature imparted to the

track portions

32 and 33, the sides of the parting strip 34, forming the inner walls of the

track portions

32 and 33, and designated by the reference character 60, and the side walls 61, engages the edges of the sash 7 and renders the weather strip 39 normally in a bow-like form in cross section so that when the same is secured in position to the jamb 5, the sash 7 is held securely and weather-tight with respect to the jamb by the manner of spring-like tension due to the yielding pressure exerted on the sashes 7 by the form of the Weather strip 30.

A U-shaped housing channel 35, running vertically in the center of the

track portions

32 and 33 for a portion of the length of the

portions

32 and 33, is formed from the body with a chamber 36 to receive the spring 21. This U-shaped channel extends outwardly into the groove 33 of the sash 7, the distance from the top of the jamb 5 to a portion of the

track portions

32 and 33. At this point on the weather strip 39, where the housing channel 35 ends, a raised flange arrangement formed from the body, forms vertical tracks 37, running the remaining distance of the length of the weather strip 30,

t to the bottom, so that the spring 21, when fully extended,

may ride in the vertical guideway formed by the housing channel 35 and the last-named tracks 37. The guideway,

comprising the housing channel 35 and the tracks 37' also provides a battle-like obstruction for the exclusion of the passage of air around the sash 7.

Located at the top portion of the housing channel 35, about one-fourth of an inch from the top edge, is a screw hole 42 located in an eyelet 76, which receives a drive screw 41. In this manner, the Weather strip 30 is secured to the jamb 5 at the top of the window casing, and floats at the bottom, thus forming a tight seal with the sash 7. The drive screw 41 also anchors the spring 21 by means of a loop 22, through which the drive screw 4-1 is inserted.

The sash balance, as illustrated in FIGURE 1, and represented by the reference character 8, as a whole, comprises a spring 21 having a loop 22 located at the top edge where it is held in an operative position with respect to the jam-b 5 by means of the screw 41, a loop 23 located at the bottom end of the spring 21, an adjustment rod 24 having a series of curved teeth 25 adapted to receive the loop 23 and lock the spring 21 in position, and a sash balance bracket 29, means for attaching the sash balance 8 in position with respect to the sash 7, having the adjusting rod 24 pivotally mounted thereto by means of a semi-tubular rivet 27, or other such suitable means such as an eyelet or pin, entered through an opening 26 in the plate 1 of the sash balance bracket 29 and through the adjusting rod 24.

As clearly illustrated in FIGURES 2 and 3, the sash balance bracket, represented as a whole by the reference character 29, has sharp toothed projections 2 located on either side of the cash balance bracket 29, and adapted to be inserted in the bottom of the sash 7 to secure the sash balance 8 with respect to the sash 7. It is to be understood that the projections 2 of the sash balance bracket 29 are not essential to the application of the sash balance bracket 29 to the sash 7. The tension of the spring 21, in combination with the extending arm of the sash balance bracket 29 will hold the bracket 29 in place on the sash 7, such that the spring adjustment is maintained.

The projections 2 have been added in design to offset any potential side shift of the sash balance bracket 29 and possible contact with the weather strip 30. The plate 1 is formed from the body of the sash balance bracket 29 and extends vertically upward into position with accordance to the tracks 37 of the weather strip 30. The opening 26 in the plate 1 is adapted to receive a semi-tubular rivet 27, or other such suitable means such as an eyelet,

which pivotally mounts the adjusting rod 24 to the sash balance bracket 29. The adjusting rod 24 is held in position with respect to the weather strip 30, and more particularly to the tracks 3'7 and the housing channel 35 Which receive the spring 21 of the sash balance 8.

Assuming that the weather strip 30 and the sash balonce 8 have been placed in an operative position, i.e., the weather strip- 33 is placed tangent to the jamb 5 and secured thereto by means of the screw 41 which also holds the spring 21 of the sash balance 8 in position, the spring 21 is entered into the housing channel 35, extended downward and rides along the tracks 37, the adjusting rod 24 is connected to the loop 23 and to the sash balance bracket 29, attached to the bottom of the sash 7 by means heretofore explained. It is possible to either decrease or increase the length of the spring 21, and therefore the tension, without removing the entire sash balance 3 from its operative position, by the following simple operation.

The window sash '7 is raised so as to allow the removal of the sash balance bracket 29 from its secured position held thereto by means of the toothed projections 2 entered in the bottom of the sash 7. in the case where no projections are used on the sash balance bracket 29, the sash balance bracket 29 is pulled downward. When the sash balance bracket 29 has thus been removed, the adjusting rod 24, along with the spring 21 of the sash balance 8 connected thereto, is pulled down along with the sash balance bracket 29, so as to allow access to the loop 23 which is caught on one of the series of curved teeth 25 on the adjusting rod 24; The loop 23 is then moved to the desired position, either upward or downward on the adjusting rod 24 and locked in one of the recesses 4 formed by the curved teeth 25, so that the spring 21 is secured in its new locked position with respect to the adjusting rod 2'4, thus adjusting the tension of the spring 21 in the sash balance 3. The tension of the spring 21 pulls the adjusting rod 24 along with the sash balance bracket 29 upward, and the sash balance bracket is replaced in its original position with the projections 2 assuming their initial place, as does the spring 21 in the housing 35 and the tracks 37. In this manner, it is not necessary to remove the entire sash balance 8 and the Weather strip 3t? from the window casing in order to make any needed adjustments in the spring 21.

From the above detailed description, it is seen that the combination weather strip 30 and sash balance 8 comloops 71, is pivotally mounted on the sash balance bracket 29 by means of a semi-tubular rivet 27, or other such suitable means, entered through the plate 1 of the sash balance bracket 29, thus holding the adjustment wire 70 in position. The lower end of the spring 21, forming a loop 73 is entered into one of the loops 71 of the adjustment wire '79, thus attaching the spring 21 to the adjustment wire 7%. Instead of the loop 73 located at the bottom end of the spring 21, a hooked end (not shown) may be used to secure the position of the spring 21 to the adjustment wire 70. In this manner, it is possible to adjust the length and therefore the tension of the spring 21 of the sash balance 8 by removing the sash balance openers racket 29 from its position in the bottom of the sash 7, pulling downward so as to allow access to the looped adjustment wire 7d and spring loop 73, and inserting the spring loop 73 in one of the loops 71, so as to secure the adjusted tension of the spring 21. The looped adjustment wire 79, along with the sash balance bracket 29 is pulled up to the original operating position, i.e., the spring attached to the adjustment wire 70 returns to the housing channel 35 and rides along the tracks 37 in the weather strip 59 and the sash balance bracket 29 is replaced in its position at the bottom of the sash 7.

Another variation of the looped adjustment Wire 70 is illustrated in FIGURE 6. This adjustment wire 70 may be used in the same manner as explained hereinabove, with the exception that the sash balance bracket 29 is not used. In this case, a sharp bent end portion 74 of the adjustment wire 70 is inserted into the bottom of the sash 7, thus holding the adjustment wire 70, cooperating with the sash balance 8 securely in position. it is not necessary to have a pro-drilled hole in order to insert the sharp bent end portion 7 4 which may be pushed or driven into a wooden sash. The pre-torming of the hole or opening to receive the portion 74, of course, would be necessary-in a sash constructed of non-yielding material. With the same facility, as hereinabove described, the

adjusted spring 21 may be replaced in its on'ginal operative position, after the adjustment has been made.

FIGURE 7 illustrates yet another modification of an adjustment means used in combination with the weather strip 36 and sash balance 8, which may be used with or without the toothed sash balance bracket 29, as shown in FIGURE 2. In this case, it is held in a relative position to the sash 7, by ".1 conventional bracket, represented by the reference character 80 placed tangent to the bottom of the sash 7 having an adjusting rod 83. afiixed thereto by means of a pin 82, or other such suitable means. This adjusting rod 31 has a fork 86 having a diagonally bent end portion 85 located in the upper portion of the adjusting rod 81. The bent end portion 85 of the fork so engages in one of the recesses 84 found between the beads 83 which comprise a conventional bead-type chain, designated as a whole by the reference character 99. This is further clearly shown in an enlarged view of the arrangement in FIGURE 8. The upper part of the bead-type chain 98 is attached to a loop 91 of the spring 21 by means of a chain attachment 87. The upper part of the spring 21 is attached to the jamb 5 by means of a screw 41, as hereinbefore explained, entered into the loop 22. In this way, the spring 1 of the sash balance 8 is secured in position. When an adjustment is desired, the bracket 8% is removed from its position with respect to the bottom of the sash 7, and the adjusting rod 81 is pulled downward along with the bead-type chain 90. The bent end portion $5 of the fork do is then placed in a recess 84- between the beads 83 so that the adjustment in the length of the spring 21 is made secure according to need, and thus the position of the spring 21 is fixed with respect to the adjusting rod 31. The spring tension then pulls the spring 21 and the adjusting rod 81 into the weather strip 3! with the adjusting rod 81 and the spring 21 of the sash balance 8 in their positions with respect to the housing channel 35 and the tracks 37. The sash bracket 89 returns to its original position cooperating with the sash 7. This beadtype chain as and the adjusting rod 81 having a fork 86 located therein, may also be used in conjunction with the sash balance bracket 29, as previously described, with or without the projections 2, so that the adjusting rod 81 is pivotally mounted thereto.

Still another modification of an adjustment means used for adjusting the spring 21 in a sash balance 8 used in combination with the novel Weatherstrip 30, is illustrated in FIGURE 9. The adjusting rod 24 having a series of curved teeth 25 adapted to receive a loop 23 in one of the recesses 4 formed by the teeth 25 and to lock the spring 21 in an adjusted position, is pivotally mounted on a conventional bracket by means of a pin 82, or other such suitable means. The upper end of the spring 23 of the sash balance 3, forming a loop 22, receives a screw 41 entered therein, thus securing the spring 21 to the jamb 5 and holding the spring 2-1 in a fixed position with respect to the weather strip 30 (not shown). The operation for adjusting the tension of the spring 21 is the same as hereinbefore explained.

FIGURES 10 and 11 illustrate yet another adjustment means used in combination with the sash balance 8 and the weather strip 30. The adjustment rod loll comprises a series of vertically spaced serrations 101 and a dimple 192 located at the top end of the adjustment rod 100. The adjustment rod 10! pivotally mounted to a standard bracket 80 by means of a pin 82, or other such suitable means, may also be used with the toothed sash balance bracket 29, or other sash balance brackets. A slotted washer 103 having a slot 194 and an off-set hole 165 is slidably adapted to lock in one of the series of serrations 101 of the adjustment rod 100, thus locking the spring 21 of the sash balance 8. This is accomplished by the hook end 106 of the spring 21 entered in the off-set hole 105, thus by the tension of the spring 21, wedging and locking the slotted washer 103 in position in one of the serrations 101 of the adjustment rod 100. The dimple 102 prevents the slotted washer 163 attached to the spring 21 from leaving the adjustment rod 166. When an adjustment is desired with respect to the spring 21. of the sash balance 8, the bracket 80 is removed from its posi tion with respect to the sash 7 and pulled downward to expose the spring 21 and the slotted washer 103 located on the adjustment rod 1%. The slotted washer 103 is grasped and turned so as to place the surface of the adjustment rod 109 at right angles to the long dimension of the adjustment rod too. The slotted washer 103 is moved up or down to obtain the desired spring tension, and allowed to cock on the adjustment rod when the desired tension is obtained, thus wedging and locking the slotted Washer H93 in one of the serrations 101, where the tension of the spring 21 will hold it securely. The spring 21 pulls the adjustment rod 100 back into its original position in the weather strip 30 and the bracket 8% is returned to its initial position with respect to the bottom of the sash 7.

Thus it is seen that the various adjustment means presented hereinabove may be used with the novel sash balance bracket 29, or with a conventitonal bracket 88, in combination with a sash balance 8 and a weather strip 30, for increasing or decreasing the tension of the spring 21 used for raising and lowering a sash 7. It has also been illustrated by description and drawings, that the necessary adjustments may be made in the spring 21 of the sash balance 8 without removing the entire weather strip 30 and the sash balance 8 from their operative positions with respect to the window casing and sash 7. It is also seen, from the foregoing desecription, that the modifications of the adjustment means, with or without the novel sash balance bracket 29, may be used separately for counterbalancing purposes, without a weather strip 30, as above disclosed.

'It should also be noted that the combination weather strip 30 and sash balance 8 having adjustment means may be used on one side of the sash 7, while a spiral sash balance is employed on the opposite side of the sash, in combination, for counterbalancing purposes.

It will, of course, be understood, that various changes may be made in the form, details, proportions and arrangement of the parts, without departing from the scope of our invention, as set forth in the appended claims.

I claim:

1. A weather strip and a sash balance for sliding sashes of window casings, said weather strip comprising a pair of horizontally spaced track portions for receiving said sliding sashes, said horizontally spaced track portions being separated by a parting strip formed from the body of said weather strip, a portion of the outer walls of said weather strip forming inwardly bent flanges for exerting pressure against said sashes, said weather strip being normally bow-like in cross section for holding said sashes securely with respect to a jamb of said window casings due to the yielding pressure being exerted on said sashes, said weather strip having a guideway for said sash balance comprising a U-shaped housing channel running vertically from the top of the jamb a portion of the length of said track portions and raised flanges running the remaining distance from said housing channel to the bottom of said weather strip for forming a guideway for said sash balance, said sash balance comprising a single spring disposed in said guideway and secured at the top of said weather strip and guideway by a screw, said screw holding said spring in said guideway and holding said weather strip at the top of said jamb and permitting said weather strip to float at its bottom end, the bottom end of said spring having attached thereto a suitable adjustment means including an adjusting rod disengageably connected to said spring and attached at its bottom end to a sash balance bracket, said bracket being removably attached to the bottom of a sash, said suitable adjustment means being used for increasing or decreasing the length of said spring, said sash balance forming means for counterbalancing said sash.

2. A weather strip and a sash balance for sliding sashes of window casings, said weather strip comprising a pair of horizontally spaced track portions for receiving said sliding sashes, said horizontally spaced track portions being separated by a parting strip formed from the body of said weather strip, a portion of the outer walls of said weather strip forming inwardly bent flanges for exerting pressure against said sashes, said weather strip being normally bow-like in cross section for holding said sashes securely with respect to a jamb of said window casings due to the yielding pressure being exerted on said sashes, said weather strip having a guideway for said sash balance comprising a U-shaped housing channel running vertically from the top of the jamb a portion of the length of said track portions and raised flanges running the remaining distance from said housing channel to the bottom of said weather strip for forming a guideway for said sash balance, said sash balance comprising a single spring disposed in said guideway and secured at the top of said weather strip and guideway by a screw, said screw holding said spring in said guideway and holding said weather strip at the top of said jamb and permitting said weather strip to float at its bottom end, a sash balance bracket including a body and toothed projections inserted into the bottom of a sash and a plate extending upwardly therefrom, said plate being formed from a portion of the body of said bracket and having an opening for receiving a suitable fastening means such as a rivet therethrough, an adjusting rod having curved teeth vertically spaced thereon, said adjusting rod being pivotaHy mounted at its bottom end to said plate on said sash balance bracket and extending upwardly into said guideway in said weather strip, said spring being formed at its bottom with a loop for being connected with said adjusting rod for locking said spring in positon with respect to said sash, said loop on said spring being caught in a recess formed by said curved teeth for removably securing said spring thereto for adjusting said spring for length and tension.

3. In a combination weather strip and sash balance wherein said weather strip has a guideway formed therein, said sash balance comprising a single spring disposed in said guideway and fastened at its upper end to a screw securing said weather strip at the top of a window casing, an adjusting rod having a series of curved teeth thereon forming a series of recesses therein, said adjusting rod being pivotally attached at its bottom end to a sash balance bracket for engaging the bottom edge of a sash, said spring being formed at its bottom with a loop, said loop being caught in one of said recesses for adjusting the length and tension of said spring, said spring and said adjusting rod being entered into said guideway and extending downwardly therethrough, said sash balance bracket including a body and a vertically extending plate formed therefrom and toothed projections formed thereon, said plate having an opening for receiving a suitable rivet for pivotally fastening said adjusting rod thereto, said toothed projections being inserted into the bottom of said sash for preventing lateral movement of said sash balance bracket, said bracket and said adjusting rod being removed from position and pulled downwardly from en gagement with said sash for access to said loop caught in one of said recesses whereby said loop may be moved to a new position securing said spring in a new locked position with respect to said adjusting rod.

4. In a combination weather strip and sash balance in accordance with claim 1, said adjusting rod having a series of curved teeth, said spring having formed at its bottom end a loop adapted to removably engage one of said curved teeth on said adjusting rod, said sash balance bracket being a conventional bracket pivotally attached to the bottom end of said adjusting rod, said spring and said adjusting rod being entered into said guideway and extending downwardly therethrough, said loop on said spring being adapted to be caught on one of said curved teeth for adjusting the length of said spring.

5. In a combination weather strip and sash balance in accordance with claim 1, said adjusting rod being a looped adjustment wire, said wire having loops thereon for being engaged by a loop formed on the bottom of said spring, said adjustment wire having a bent end portion adapted to be inserted into the bottom of said sash for holding the adjustment wire securely in position.

6. In a combination weather strip and sash balance in accordance with claim 1, said adjusting rod having a series of vertically spaced serrations thereon, said spring having a hooked end, a slotted washer having an offset hole therein for engaging said hooked end of said spring, the tension of said springwedging and locking said slotted washer in position in one of the said serrations on said adjusting rod, said slotted washer having a slot adapted to slidably engage and lock in one of the series of serrations on said adjusting rod.

7. In a combination weather strip and sash balance in accordance with claim 1, said adjusting rod having a diagonally bent end portion and a fork at its upper end, said spring having attached at its bottom end a conventional bead-type chain, said fork being adapted to be placed in position to engage in one of the recesses between the beads in said bead-type chain for adjusting the length of said spring.

References Cited in the file of this patent UNITED STATES PATENTS 2,279,600 Tappan Apr. 14, 1942 2,722,723 Meats Nov. 8, 1955 2,779,981 Di Vito Feb. 5, 1957 2,885,725 Glass May 12, 1959