US1254502A - Window-operating device. - Google Patents

Description

C. W. HOPPIE.

WINDOW OPERATING DEVICE.

APPLICATION FRED-APR. 4. I917.

mmmm. Patented Jan. 22,1911&

2 SHEETSSHEET 1- amounted,

C. W. HOPPIE.

WINDOW OPERATING DEVICE.

APPLIGATION FILED APR. 4. m1.

lPatnted Jan. 22,1918.

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C HFRLES W. I-IOJPPIE, 0F BUFFALO, NEW YORK, ASSIGNOR 0F ONE-THIRD T0 SAMUEL UJDIN MIND ONE-THIRD T0 HARRY MARSEY, BOTH 0F BUFFALO, NEW YORK.

WINDOW-OPERATING DEVICE.

Specification of Letter: Patent.

Patented Jan. 22, 191

Application filed April 1, 1917. Serial No. 159,68d.

To all whom it may concern:

Be it known that 1, CHARLES W. .I'I OPPIE, a citizen of the United States, residing at lBuflalo, in the county of Erie and State of New York, have invented a new and useful Window-Operating Device, of which the following is a specification.

The present invention appertains to a window operating device, and aims to pro-. vide a novel and improved mechanism for automatioally raising and lowering the sashes of a window under the control of a swltch, or other device.

An object of the invention is the provision of novel means for raising and lowering each sash and for stopping the movement thereof when completely raised or lowered.

Another object of the invention is to provide an operating mechanism of the nature indicated having novel means for independently controlling the upper and lower sashes of a window.

A still further object of the invention is the provision of a novel yet extremely simple and effective manner of assembling the electric motor or other prime mover with the driven element.

It is also within the scope of the invention to provide a window operating device which is simple and inexpensive in construction,

which can be readily installed in prevailing Window casings and frames without being conspicuous, and which will operate efli ciently to carry out its intended functions.

With the foregoing and other objects in view which will appear as the description proceeds, the invention resides in the combination and arrangement of parts and in the details of construction hereinafter described and claimed, it being understood that changes in the precise embodiment of the in vention herein disclosed, can be made within the scope of what is claimed, without departing from the pirit of the invention.

The invention is illustrated in the accompanying drawings, wherein Figure 1 is an elevation of a window construction, portions being shown in section, to illustrate the present operating mechanism applied thereto.

Fig. 2 is an enlarged vertical section of the motor and transmission gears.-

F ig, 3 is a horizontal section on the line 3-3 of Fig. 2.

Fig. 4 is a diagrammatical view showing the electrical wiring.

In the drawings, the mechanism is illustrated .as applied to a conventional window casing or. frame 1 having the lower and upper sashes 2 and 3, respectively, although it will be understood that the present mechanism can be applied to various windows, the mechanism being housed within one of the usual sash weight compartments so as to be invisible, and to provide no objectionable parts exposed to view. The sash weights are eliminated, with their attendant objections, and the sashes are readily removable.

In carrying out the invention, an electric motor 4 is employed as the prime mover, although a suitable equivalent thereof can be used. This motor 4 embodies an upright casing 5 secured upon the sill or other part of the window frame at the lower end of the usual sash weight compartment, as seen in Fig. 1. Mounted within the casing 5 are two sets of field coils 6 and 7, between which the armature 8 is rotatable about a vertical axis being carried by the vertical armature shaft 9 journaled in suitable bearings 10 provided within the casing 5. The lower end of the armature shaft 9 seats upon a ball or anti-frictional bearing 11 supported by the bottom of the casing 5, whereby the armature can rotate freely and smoothly. The commutator carried by the armature is indlcated at 12.

Assembled as a unit with the motor, is a reduction gearing, including a cap 13 closing the upper open end of the casing 5 and supported by anti-frictional balls l lfrom the rim of the casing 5, whereby the cap can rotate freely. Suspended for rotation from the cap 13 is a setof planetary gears 15 which mesh with an internal gear 16 carried by the upper portion of the motor casing 5, to give the gears.15 a planetary motion. Said planetary ears 15 also mesh with a sun gear 17 carried by the upper end of the armature shaft 9. The cap 13 is thus driven at a slower velocity than the armature 8, thereby providing the desired reduction gearing.

The means for raising and lowering the.

sashes are driven from the cap ormember 13, and for this purpose, said cap has a central upstanding hub 17 receiving the lower end ofa vertical drive shaft 18 which can be secured by means of a set screw or otherwise in said hub, so that the drive shaft will rotate'with the ca The upper terminal of the shaft can be journaled in any suitable bearing 19 within the window casing. Rotatably mounted upon the drive shaft 18 is a tubular screw 20 supported by means of a collar 21 or the like, and a nut 22 is mounted for vertical movement upon the screw and has a pin or finger 23 projecting therefrom through a vertical slot 24 with which the corresponding jamb of the window casing is provided-behind the adjacent stile of the lower sash 2. A slotted plate 25 is embedded and secured within said stile of the rail and the pin 23 pro eets into the vertical slot thereof, whereby the nut" 22 and sash 2 have a limited vertical movement with respect to each other, but when the nut is raised and lowered, this will carry the sash 2 with it. When the sash is completely lowered, the nut 22 is moved off of the lower end of the'screw 20 onto the collar or sleeve 21, whereby the further rotation of the screw 20 cannot move the nut 22 farther, a coiled wire expansion spring 27 surrounding the collar 21 and shaft 18 and being supported by a collar 28 carried by the shaft 18, whereby when the nut 22 is moved downwardly out of engagement 'with the lower end of the screw, it will compress the spring 27, for the purpose which will hereinafter more fully appear. The upper terminal of the screw 20 is reduced, as at 29, whereby when the nut 22 is completely raised, it will move out of engagement with the upper end of the screw 20 onto the reduced portion 29, thereby preventing the further upward movement of the nut, since the reduced portion 29 being exposed can readily rotate within the nut. The reduced portion 29 has a clutch member 30.

The means for raising and lowering the upper sash 3 embodies a vertical screw 31 also disposed within the window casing and having its upper and lower ends journaled in suitable bearings 32. A nut 33 travels vertically upon the screw 31 and has a pin or finger 34 projecting therefrom through a second vertical slot 24 in the jamb of the window casing behind the corresponding stile of the upper sash 3. The pin 34 pro jects into the vertical slot of a slotted plate 35 and embedded and secured within said stile of the upper sash, whereby to provide for a limited vertical movement of the nut 33 relative to the upper sash. The screw 31 ,is provided at its Iower end with a reduced smooth portion 36 onto which the nut is completely lowered, and the coiled wire expansion sprin 37 surrounds the reduced portion 36 and is supported by a collar 38 secured thereto, whereby said spring will be compressed by the nut 33 when it is moved out of engagement with the lower end of the screw threads. The upper end of the screw is also reduced, as at 39, whereby the nut 33 can move out of engagement with the upper end of the screw 31 when the upper Sash is completely raised, thus permitting the screw 31 to continue to rotate without further raising said nut.

As seen in Fig. 4, the screws 20 and 31 are offset, to correspond with the offsetting of the upper and lower sashes of the window, and as illustrated, a spur gear 40 is secured to the lower terminal of the screw 31 below the collar 38 and meshes with a spur gear 41 rotatable loosely upon the upper terminal of the drive shaft 18. The gear 41 has a clutch hub 42, and a clutch member 43 is feathered on the drive shaft between the clutch hub 42 and clutch member 30 to alternately engage them, the clutch member 43 being slidable on the drive shaft but being rotated therewith. Thus, when the clutch member 43 is moved into engagement with the clutch member 30, this will connect the screw 20 with the drive shaft 18 to rotate therewith, whereas when the clutch member 43 is raised, into engagement with the clutch hub 42, this will connect the drive shaft 18 with the upper screw 31.

Said screws are thus alternately connected the armature lever to move the clutch member 43 upwardly into engagement with the clutch hub 42. The circuits of the magnets 45 and 46 are controlled by the respective switches 47 and 48 and are sup lied with electrical energy from a common attery 49 or other source of electrical energy. One circuit 50 includes the magnet 45, switch 47 and battery 49, and the other circuit 51 includes the magnet 46, switch 48 and battery 49.

The operation of the motor 4 is controlled by the up and down switches 52 and 53, respectively. One motor circuit 54 includes the field coils 6, commutator 12, battery 49, and switch 52 and the other motor circuit 55 includes the field coils 7 which are wound reversely to the coils 6, commutator 12, battery 49 and switch 53. By operating the switch 52, the circuit being closed through menace it:

the field coils 6 will cause the armature to rotate in one direction, whereas if the swltch 53 is'closed, the reversal ofthe field by the energization of the field co1ls-' Z Wlll. result in the armature being rotated in the opposite direction. In this manner, the screws and 31 are rotated in opposite directions for raising and lowering the sashes.

The switches 52 and 53 can be talzen to represent diagrammatically, automatic circuit closers, whereby the mechanism Wlll be controlled automatically.

It is also preferable to provide those stiles ofthe sashes opposite to the raising and lowering mechanism with inset wheels or rollers 57 to bear against the corresponding jamb, whereby to prevent the sashes from sticking or binding due to the fact that they are raised and lowered at one edge only.

In operation, supposing that it is desired to raise the lower sash. The lower sash switch 47 is then closed, thus energizing the magnet 45 which will swing the armature lever 4A: to move the clutch member 43 into engagement with the clutch member 30, thus connecting the screw 20 with the driveshaft 18. The upper switch 52 is then closed, thereby closing one of the motor circuits,

so that the shaft 18 and screw 20 are rotatedin the proper direction to carry the nut 22 upwardly for raising the sash 2. When the sash is completely raised, although it can be stopped at any suitable point, by releasing the switches to open the circuits, the nut 22 in reaching the upperend of the screw will be moved out of engagement therewith onto the reduced portion 29, thereby permitting the screw to rotate without further moving the nut. The nut 22 will, however, bear upon the upper threaded portion of the screw by gravity, so that when the screw 20 is rotated in the opposite direction due to the reversal of the motor by the closing of the switch 53, the nut will be engaged by the upper end of the screw threads to carry the nut downwardly, said nut having ,a limited downward movement before lowering the sash 2, due to the move ment of the pin 23 and the slotted plate 25.

When the nut 22 reaches the lower end of the screw it is moved. out of engagement with the thread thereof, the spring 27 being compressed, thus allowing the screw 20 to rotate, without breaking any of the parts. The spring 27 will press the nut 22 upwardly against the lower end of the screw thread, whereby when the switch 52 is closed to raise the lower sash, the nut will catch hold of the screw thread to carry the nut upwardly, it being noted that the nut has a limited upward movement in moving into engagement with the screw thread before the pin 23 reaches the upper end of the slot in the plate 25 to raise the sash 2. It is thus an easy matter, by operating theswitches 52 and" 53 with the switch 47 closed, to raise and lower the sash and stop it at any desired point, and it willbe noted that switch 48 is closed, thereby energizing the magnet 46 to swing the armature lever 14 to move the clutch member 43 into engagement with the clutch hub 42 thus connecting the screw 31 with the drive shaft 18. Now, by operating the switches 52 and 53, the upper sash will be raised and lowered, as desired, the operation of the nut 33 by the screw 31 being the same as the operation of the nut 21 by the screw 20, as above explained.

Having thus described the invention, what is claimed as new is:-

1. An operating device embodying a motor having an upright casing and a vertical armature rotatable therein, a rotatable member mounted upon said casing, a reduction gearing between said member and armature, a vertical drive shaft having its lower end attached to said member, a screw operated by said drive shaft, and a nut traveling upwardly and downwardly on said screw for raising and lowering a member.

2. An operating device of the character described embodying a motor having an up- I right casing and a vertical armature rotatable therein, a member rotatable upon said casing, an internal gear carried by the casing, a sun gear carried by the upper end of the armature, a planetary gear carried by said member and meshing with said sun and internal gears, a vertical-drive shaft having its lower end secured to said member, a vertical screw operated by the drive shaft, and a nut engaging the screw for carrying an other member upwardly and downwardly.

3. A window operating device embodying a pair of screws for the upper and lower sashes of a window, a reversible actuating means, means controlling the actuating means for operating it in opposite directions, controllable means for alternately connecting the actuating means with said screws, and nuts traveling upon said screws for carrying the upper and lower sashes with them.

4. A window operating device embodying a pair of screws for the upper and lower sashes of a window, nuts traveling upon said screws for carrying the upper and lower sashes with them, a drive shaft, reversible actuating means for operating said shaft, means controlling the actuating means for reversing it, clutch means for alternately connecting the drive shaft with the screws, and means controlling the clutch means.

5. A window operating device embodying a pair of screws for the upper and lower sashes of a window, nuts traveling upon said screws for carrying the upper and lower sashes with them, a reverslble motor, up and down switches controlling said motor for raising and lowering the sashes, elec- 10 trieally operated means for alternately connecting the motor with the screws, and

switches for the upper and lower sashes controlling said electrically operated means.

In testimony that I claim the foregoing as my own, I have hereto aflixed my signa- 1e ture in the presence of two witnesses.

CHARLES W. HOPPIE. Witnesses:

IvY E. SIMPSON, Mormon E. MILLER.

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