US3195174A

US3195174A - Sash balance connecting means

Info

Publication number: US3195174A
Application number: US131861A
Authority: US
Inventors: Nobes William Douglas
Original assignee: Caldwell Manufacturing Co Inc
Current assignee: Caldwell Manufacturing Co Inc
Priority date: 1961-08-16
Filing date: 1961-08-16
Publication date: 1965-07-20
Anticipated expiration: 1982-07-20

Description

July 2%, 1965 Filed Aug. 16, 1961 w. D. NoEs 2 sheets sheet l 20 fwd W VN/ INVENTOR. \A/ILLIAM DOUGLAS News Arramvxv 5113 2@, 1965 w. D. NOBES 3,195,374

SASH BALANCE CONNECTING MEANS Filed Aug. 16, 1961 2 Sheets-Sheet 2 INVENTOR. WILLIAM DOUGLAS Noses ArmR/vay United States Patent 3,195,174 SAH BALANQE QGNNEQTENG MEANS William Douglas Nobes, Rochester, N.Y., assignor to The (Ialdweli Manufacturing Company, New York, N.Y., a corporation of New York Filed Aug. 16, 1961, Ser. No. 131,861 8 Claims. ((11. 162tl2) This invention relates to the sash balances for a double hung window and more particularly to sash balance connecting means and related hardware for double hung so called take-out, or removable Windows.

It is necessary in the operation of sash balance platform take-out hardware to lock the balances in an extended position so that the sash may be lifted off the platforms so that they may be shifted laterally and removed from the window unit. Particularly in the case of upper sashes which must be operational in their uppermost position, it is not possible to stop the balance travel with the counter balanced sash below the fully closed position, as in the case of a platform type take-out lower sash. These upper sashes should lock out at their low est possible position in order to obtain full sash opening.

It has formerly been necessary in the operation of platform take-out hardware to use compression type jambs, friction type balance locks or manually operated balance locks; which means have proved to be diificult to operate, expensive to install and easily rendered inoperable as by breakage or sticking. More modern devices have required extensive adjustments and attachments to be made to the sash balance in order to provide an eflicient means by which the balance may be locked in any position. The most widely used sash balance lock is manually operated, sometimes requiring a juggling process of holding the window with one hand while attempting to manipulate the lock with the other hand. These manual locks have had a tendency to stick, become painted shut and become unsightly to the appearance of the window.

It is therefore an object of this invention to provide an upper sash balance latch or sash connecting means, and related hardware which overcome the above-mentioned disadvantages.

Another object of the present invention is to provide a sash balance latch in which balance locking is positive and simple, operation being part of the normal action of removing and replacing the sash.

Another object of the invention is to provide a sash balance latch which permits pre-determination of the locked position of the balance.

Yet another object of the invention is to provide an upper sash balance latch which integrates the still stop into the locking assembly.

Another object of the invention is to provide a balance latch which is automatic, thereby eliminating the need for separate manual actuation of the lock.

Still another object of the invention upper sash balance lock which can be efficiency in wood or metal windows.

Yet another object of the invention is to provide an upper sash balance latch and related hardware for double hung windows which is economical and which can be used with spiral balances, clock spring balances, extension springs, or counter weights.

Still another object of the invention is to provide an upper sash balance lock which is self-aligning and which is therefore maintained by its own nature in correct adjustment.

is to provide an used with equal dlhsd'id Patented July 20, 1%65 Another object of the invention is to provide a simple device of the nature described which is unaffected by wear and not subject to contamination by dirt, moisture, etc.; therefore not requiring close tolerance manufacture.

These and other objects of the invention and the invention itself will be understood by reference to the drawings and to the following description of a preferred embodi merit of the apparatus used therein which invention being an improved type of upper sash balance latch and related hardware for double hung windows.

In the drawings, therefore:

FIG. 1 is an enlarged view of the sash connecting means, or latch, in normal position, mounted for use.

FIGv 2 is a cross-sectional view of the latch taken at Section AA of FIG. 1.

FIG. 3 is a side view of the alignment guide 11 of FIG. 1.

FIG. 4 is a cross-sectional view of the sill stop 12 taken at Section B-B of FIG. 1.

FIG. 5 is a detailed view of the latch mounted for use and in various positions of operation.

FIG. 6 is a side view of the sash carrier and extension to which the latch is fastened,

Therefore, the invention is basically a latch, or sash balance connector, a sash balance particularly an upper sash balance which is of a type which locks on basic stroke and releases on alternate strokes through rotation of the notched wheel 10. It also functions as a sill stop for the sash and incorporates features which make it self-aligning.

The subject device therefore comprises a rotating wheel 1% which is mounted on a carrier riding in a track 15, a combination aligning device and latching stop or latch retainer 11, and a combination sill stop and wheel positioner 12. The wheel Ill is mounted on the carrier 25 which is attached to the sash carrier 24 on which rests the sash 23 which is moved downward toward the sill 14. As the wheel carrier 25, being carried on a slide moving in the platform track and positioned below the platform, moves down with the sash, it passes the latching stop 11 which projects perpendicularly to the side from the jamb of the window. If the wheel 10 is oriented in any position other than with the notches parallel to the vertical center line of the sash and track, it strikes the angled section of the latching stop 11 or the projecting tip 13 of said latching stop and is rotated into proper alignment. Further downward movement of the sash 20, etc., brings a leg of the lower notch of the wheel into contact with the sill stop 12. The leg slides along th projection of the stop until the stop is seated in the root of the V as at 1%. At this point, the upper notch is so oriented that it will engage the lower edge of the latch 11, contacting on a leg of the V. Further upward travel rotates the wheel 11 further, seating the latch in the root of the V and placing the other leg of the notch in contact with the latch so that further upward travel or rotation of the wheel 10 is impossible, as at 100. The balance is locked in place and the sash may be moved up- Ward, disengaging the platforms, so that the sash is shifted and removed from the frame.

In order to replace the sash, it is seated on the platform, moved in a downward direction, thus again moving the wheel 14 down to contact the sill stop 12. On this stroke, contact with the latch 11 has left the wheel so oriented that an outside edge of leg 3t) contacts sill stop 12 and further rotation results until the sill stop 12 is fully contacted and movement further in a downward- 1 ea direction is prevented. At this point the sash is fully seated.

Upward movement of the sash brings an outside edge of leg 3-1 of the wheel 1nd into contact with latch 11 because of prior orientation at the sill stop 32. On this contact, the wheel is rotated clear of the latch 11 to a position such that the notches are in line with the track 15 and normal sash operation is possible.

In order to remove the upper sash of a double hung window in accordance with the present invention, the sash is moved downward toward the sill 14. As the wheel 10 moves down with the sash it engages the sill stop 12,

thus positioning the wheel 10 as at ltlb to go into the locking position 100. The sash 26 is raised and then re moved and the wheel 10 engages the latch retainer 11 at 10c and holds the balance in the extended position.

In order to unlock the balance, the sash is replaced and lowered until the wheel ltl engages the sill stop 12 as at 19d and the wheel is thus in the unlocked. position, Upon raising the sash, thewheel 10 will strike the latch retainer 11 and rotate to the normal lltla so that the sash will operate normally.

In FIG. 1 of the drawing, the latch 10 is shown in normal or free position, as designated at 10a in FIG. 5. The wheel is carried on a carrier 24 mounted on a balance rod 23. The sash 20 has these parts detachably connected thereto. The parting stop is shown at 21 and the blind stop at 22. FIGS. 2, 3, and 4 show cross-sectional and side views of the parts shown in FIG. 1.

FIG. 5 shows'the various positions of the wheel 19. The normal position of the wheel is shown at lilo, the wheel being mounted in the track 15. The numeral ltlb designates the wheel in lock-ready position as when it contacts sill stop 12. When 100 is in locked position in contact with the latch retainer and guide 11 as in an upward movement of thesash. The wheel 10d is in unlocked position resulting from the downward movement of the sash following the locking engagement with the latch retainer 11. The Wheel like is shown in guided position in which guide 13 and angled portion 32 come into play when the wheel 10 is in any position other than normal FIG. 6 shows the position of the balance rod 23 and the sash carrier 24, with the sash carrier extension 25 fastened to the carrier and carrying the rotating Wheel 10,, therebyshowing the relationship of the positions of the wheel to the sash.

It will be appreciated that my new device allows either an upper or lower sash to be removed in .a variety of ways. For instance, the platform portions, since not essential to the latching operation itself may be modified greatly to aid in various removal operations. Upon said modifications of the platform, for removal the sash might'be turned outwardly, swung' to the left or right, slid up or down the window guideway as would be desired. Furthermore, my device could easily be adopted for use with flexible cord supports that are old in the art.

-Hereinabove I have described and illustrated our invention in connection with certain specific embodiments. It Will-be obvious that this invention, and the novel teaching described herein, may be embodied or incorporated in other forms or embodiments. All such variations and embodiments are, of course, contemplated.

- I claim: 7

1. A sash balance latching device comprising a rotatable latch, a metal guideway afiixed to a window frame, a slidable sash carrier positioned, in part, in said guide- Way, a first stop positioned at a specified latching distance within said guide-way; a second stop positioned in close proximity to the outside edge of said guideway, said second stop of a substantially projecting sheet'metal in a rectangular configuration, said rotatable latch fastened to said sash carrier by an axial fastener such that complete rotation of said latch may be accomplished about said fastener, said latch in a substantial rectangular configuration with portions notched in the ends thereof; said rotatable latch and slidable sash carrier afiixed to an extensible member, said member to be used in conjunction with a balance device.

2. A latching device as in claim 1, the notched portions of the rotatable member having a substantially V- shaped configuration.

3. A sash balance connector comprising a rotatable wheel attached to a slidable sash carrier .attached to and moved by a sash balance, said sash carrier adapted to move in a guideway afiixed to a window frame, said rotatable wheel being maintained in alignment during its movement by a latch retainer, said rotatable wheel moving into engagement with a stop positioned on said guideway, said stop moving said rotatable wheel into engagement with said latch retainer, and thereby maintaining said sash carrier in a fixed position for the removal of a window sash.

4. A sash balance connector comprising a rotatable wheel having a notched portion attached to a slidable sash carrier attached to and moved by a sash balance, said sash carrier adapted to move in a guideway afifixed to a window frame, said rotatable wheel being maintained in alignment during its'movement by a latch retainer, said rotatable wheel moving into engagement with a stop positioned on said guideway, said stop moving said rotatable wheel into engagement with said latch retainer, and thereby maintaining said sash carrier in a fixed position for the removal of a window sash, I

5. A sash balance connector comprising a rotatable wheel having a notched portion of a substantially V- a shaped configuration attached to a slidable sash carrier attached to and moved by a sash balance, said sash carrier adapted to move in a guideway aifixed to a window frame, said rotatable wheel being maintained in alignment during its movement by a latch retainer, said rotatable wheel moving into engagement with a stop positioned on said gu-ideway, said stop moving said rotatable wheel into engagement with said latchretainer, and thereby maintaining said sash carrier in a fixed position for the removal of a window sash.

6. A sash balance connector for maintaining a sash balance in a fixed position when said balance is extended so as to permit the removal of a take-out window comprising a rotatable wheel attached to a take-out sash carrying platform and movable on .a platform track, a stop for cooperating with said rotatable wheel positioned on said platform track, to rotate said wheel into engaging position with a latch retainer, so as to maintain said platform in a fixed position, for the rem-oval of said take-out window, said latch retainer also cooperating with said rotatable wheel to align said rotatable wheel in position for movement with said sash carrying platform.

7. A sash balance connector for maintaining a sash balance in a fixed position when said balance is extended so as to permit the removal of a take-out wind-ow comprising a rotatable wheel having a notched portion attached to a take-out sash carrying platform and movable on a platform track, a stop for cooperating with said rotatable wheel positioned on said platform track, to rotate said wheel into engaging position with a latch retainer, so as to maintain said platform ina fixed position,

for the removal of said take-out window, said latch retainer also cooperating with said rotatable wheel to align said rotatable wheel in position for movement wi-thrsaid sash carrying platform. a

a 53. A sash balance connector for maintaining a sash balance in a fixed position when said balance is extended into engaging position with a latch retainer, so as to main- 5 6 tain said platform in a fixed position, for the removal of 1,011,734 12/11 Brown et a1 16-202 said take-out window, said latch retainer also cooperating 1,070,852 8/ 1'3 Stanecky et a1 16-202 with said rotatable wheel to align said rotatable wheel in 1,932,906 10/33 Muir et a1. 16202 position for movement with said sash carrying plat-form. 2,517,059 8/ 59 Van Every.

References Citefi by the Examiner 5 FOREIGN E F UNITED STATES PATENTS 4,006 2/ 08 Great Brltaln.

804,721 11/05 Hamilton 16-202 DONLEY I. STOCKING, Primary Examiner.

999,292 8/11 Bagna-ll 16202

Claims

8. A SASH BALANCE CONNECTOR FOR MAINTAINING A SASH BALANCE IN A FIXED POSITION WHEN SAID BALANCE IS EXTENDED SO AS TO PERMIT THE REMOVAL OF A TAKE-OUT WINDOW COMPRISING A ROTATABLE WHEEL HAVING A NOTCHED PORTION OF A SUBSTANTIALLY V-SHAPED CONFIGURATION ATTACHED TO A TAKEOUT SASH CARRYING PLATFORM AND MOVABLE ON A PLATFORM TRACK, A STOP FOR COOPERATING WITH SAID ROTATABLE WHEEL POSITIONED ON SAID PLATFORM TRACK, TO ROTATE SAID WHEEL INTO ENGAGING POSITION WITH A LATCH RETAINER, SO AS TO MAINTAIN SAID PLATFORM IN A FIXED POSITION, FOR THE REMOVAL OF SAID TAKE-OUT WINDOW, SAID LATCH RETAINER ALSO COOPERATING WITH SAID ROTATABLE WHEEL TO ALIGN SAID ROTATABLE WHEEL IN POSITION FOR MOVEMENT WITH SAID SASH CARRYING PLATFORM.