US2800322A

US2800322A - Window operating mechanisms

Info

Publication number: US2800322A
Application number: US379525A
Authority: US
Inventors: Michael J Tracy
Original assignee: Individual
Current assignee: Individual
Priority date: 1953-09-11
Filing date: 1953-09-11
Publication date: 1957-07-23
Anticipated expiration: 1974-07-23

Description

July 23, 1957 M. J, fRAcY WINDOW OPERATING MECHANISMS 2 Sheets-Sheet 2 Filed Sept. 11. 1953 INVENTOR. MICHAEL J. TRACY United States Patent Opv WINDGW OPERATING MECHANISMS Michael J. Tracy, Robertson, Mo. Application September 11, 1953, Serial No. 379,525

4 Claims. (Cl.` 268-23) This invention relates generally to window sash operating mechanisms and more specifically to mechanisms for adjustingthe sashes of window structures of the type having each a plurality of sashes disposed in louver arrangement and adapted for such adjustment as to provide Ventilating openings between portions of various adjacent sashes, the predominant object of the invention being to provide an operating mechanism for the type of window structure referred to which is extremely simple in construction and operation and is capable of performing its intended functionv in a highly etlicient manner.

Fig. 1 is an inside elevation of a window structure provided with the improved operating mechanism of this invention.

Fig. 2 is an enlarged, fragmentary, vertical section taken on line '2-2 of Fig. 1.

Fig. 3 Vis a fragmentary section taken on line 3-3 of Fig. 2.

Fig. 4 is an enlarged, fragmentary, section taken on line 4-4 of Fig. 1.

Fig. 5 is an enlarged, fragmentary, Vsection taken on line 5-5 of Fig. 1.

In the drawings, wherein is shown for purposes of illustration, merely, one embodiment of the invention,.1` designates the frame of a window structure which is designated generally by the reference character A. The window frame 1 is of .rectangular shape, as is shown in Fig. l, being composed of a sill portion la, a head portion 1b, and opposed hollow side jamb portions 1c.

In the embodiment of the invention illustrated in the drawings the window frame 1 has associated therewith a plurality of louver-type window sashes which are designated by the

reference characters

2, 3, 4 and 5,` said sashes comprising each a sash frame 6 in which is glazed a pane of glass, or other material 7. While the precise constructions of the frames of the sashes and the frame of the window structure are not important insofar as this invention is concerned, by preference said yframes are constructed as shown to good advantage in Fig. 2. In other words, the frame 1 of the window structure has a head portion 1a which is channel-shaped in cross-section, a sill portion 1b which is also channel- Shaped in `cross-section and includes an inclined wall portion 8, and opposed hollow jamb portions shaped as shown to good advantage in Figs. 4 and 5. The frame of the window structure includes a member il which at its upper lend is shaped as shown in Fig. 2, that is to say. said member is Aprovided with a horizontal portion 9a which is welded, or otherwise secured, to the bottom wall of the head portion 1a of the window structure frame and hasextended therefrom an inclined portion 9b. At its lower end the member 9 is provided with a horizontal ange 9 which is welded, or otherwise secured, to the top wall of thesill portion 1b of the 'window'structure frame. The opposed side portions 9d of the member 9 are shaped as shown in Figs. 4 and 5,

2,800,322 Patented July 23, l 957 these side portions being channel-shaped and each having a relatively long leg 9e which serves as an abutment. The member 9 is in the form of a rectangular, marginal frame which encloses an opening 10 which extends substantially from top to bottom and substantially from side to side of said member.

Each of the

sashes

2, 3, 4, and 5 is provided with a shaft or rod 11 which extends transversely of the window structure and is supported for rotary movement by having its ends project through openings formed in walls of the jamb portions 1c of the window structure frame 1, these shafts or rods preferably being formed from tool-resisting steel. In the case of each sash the rod 11 thereof is welded, as indicated at 1'2, or is otherwise secured, to an element 13 which forms a rigid part of the top portion of the sash, this element 13 having a curved portion 13?L which partly embraces the rod. The curved portion 13a ofthe uppermost sash 2is contacted by the inclined upper portion 9b of the member 9, as shown in Fig. 2, and each

sash

3, 4, and 5 located beneath said uppermost sash receives in contact with the curved portion 13a of its upper portion 13 an inclined portion 14 formed on the lower portion of the sash located immediately above said sash.

The shaft or rod 11 of each of the

sashes

2, 3, and 4 has welded, or otherwise secured to each of its opposite ends a crank arm 15, and the rod 11 of the lowermost sash 5 has such a crank arm 15 welded, or otherwise secured thereto at only one end thereof. The arms 15 at the left-hand side of the window structure, as viewed in Fig. l, which is the side at which the rod 11 of sash 5 is provided with an arm 15, are pivotally connected at their outer ends to an elongated bar 16, said arms and said elongated bar being housed within the channel-shaped jamb portion 1C of the window structure frame 1. Likewise at the opposite side of the window structure an elongated bar 17 is provided to which is pivotally connected the outer end portions of the arms 1S of the rods 11 of the

sashes

2, 3, and 4. The lower end portion of this elongated bar is pivotally connected by a pivot element 1S to a member 19, this member being welded, or otherwise secured to an end portion of the rod 11 of the lowermost sash 5, as is shown to good advantage in Fig. 3, wherein the weld for securing the member 19 to the rod of the lowermost sash is designated by the reference character 20. 'The member 19 is of bifurcated shape, as is shown clearly in Fig. 3, said member comprising one plate 19a which is welded to the rod 11 of the lowermost sash and to which is welded, or otherwise secured a second plate 19b which is so shaped that its upper portion is spaced from the upper portion of the plate 19a. The spaced apart plate portions of the member 19 are provided with alined or coplanar open-ended slots 21 which extend at an angle to line between the axis of the shaft or rod 11 of the lowermost sash and the point of connection at 1S of plates 19a and 19h to bar 17, and which serve a purpose to be hereinafter set forth.

The arms 15 at the right-hand side of the window structure and the elongated bar 17 to which said arms are pivotally connected, are housed within the channelshaped jamb portion of the window structure frame at that side of the window structure, `and projected through r the space between the spaced apart plate portions of the member 19 is a worm or screw 22. This worm or screw is supported in

suitable thrust bearings

23 and 24, the thrust bearing 23 being secured to the inside face of the outer wall of the jamb portion 1 of the window structure frame in which said worm is disposed. The thrust bearing 24 is welded to a plate 25 which closes an opening 25 formed through the inside wall of the jamb portion 1c of the window structure frame in which the worm is disposed. The plate is secured in place relative to the inside wall of the jamb portion of the window structure frame by means of patch head bolts 26 which are originally provided with auxiliary head portions (not shown) which snap off when the limit of torque is reached in applying the bolts so that they cannot thereafter be withdrawn by unauthorized persons. The outer shaft portion of the worm projects through an opening formed through the plate 25 and secured to the projected outer end portion of said worm shaft by a set screw 27 is a handle 27 which facilitates rotation of said worm, Also, mounted on the worm or screw 22 is a worm nut 28 which is adapted to move longitudinally of the worm in one or the opposite direction on rotation of said worm in the appropriate direction. The worm nut is provided with pins 29 which extend outwardly from said nut in opposite directions, and mounted on each of said pins is a hardened wear sleeve 30, the oppositely extending pins and the sleeves mounted thereon being projected into L to move said member and thereby rotate the rod 11 of the lowermost sash 5 to which said member 19 is welded to adjust said lowermost sash as desired. Also, because the arms 15 of the

sashes

2, 3, and 4 are connected to the member 19 by the elongated bar 17 and are secured to the rods 11, the rods 11 of said

sashes

2, 3, and 4 will be correspondingly rotated by rotation of the handle 27, and the rotary movement of the rods 11 of the vari-' ous sashes will be transferred to the opposite side of the window structure by the elongated bar 16 at said opposide side of said window structure in cooperation with the arms 15 to which said elongated bar is pivotally connected. As the sashes are shown in full lines in Fig. 2 they are in their closed positions and all that need be done to adjust said sashes to their fully open position or to an intermediate position is to rotate the handle 27 in the appropriate direction to cause the worm nut 28 to travel outwardly of the worm 22. This will rotate thc member 19 to the position in which it is shown by broken lines in Fig. 2, or to an intermediate position, thereby rotating the rod 11 of the lowermost sash 5 and such rotation of said rod will be transmitted by the

elongated bars

16 and 17 and the arms 15 to the rods of the other sashes to correspondingly adjust the other sashes.

I claim:

1. In a window comprising a window frame having side jambs at least one of which is hollow and which has an inside wall and an outside wall, a plurality of rotatable shafts extending between the jambs, each shaft at one end projecting into the hollow jamb, each shaft carrying a louver type window sash: operating mechanism for the sashes comprising a crank arm fixed to cach shaft at said one end thereof within the hollow jamb, means within the hollow jamb connecting the outer ends of said arms for conjoint rotation of the shafts, one of said arms having a slot extending at an angle to the line between the axis of the shaft to which said one arm is xed and the point of connection of said one arm to said connecting means, said slot being open at its outer end, said hollow jamb having an opening in its inside wall, a plate secured to the outer side of the inside wall of the hollow jamb u on the end of the screw inward of the hollow jamb for manually rotating the screw, and a nut on the screw having means extending laterally therefrom into the slot in said one arm and slidable in said slot.

2. In a window comprising a window frame having hollow side jambs, each having an inside wall and an outside wall, a plurality of rotatable shafts extending between the jambs, the ends of the shafts projecting into the hollow jambs, each shaft carrying a louver type window sash: operating mechanism for the sashes comprising a crank arm fixed to each shaft at each end thereof within the hollow jambs, elongate bars within the hollow jambs connecting the outer ends of said arms for conjoint rotation of the shafts, one of said arms in one jamb having a slot extending at an angle to the line between the axis of the shaft to which said one arm is xed and the point of connection of said one arm to the respective bar, said slot being open at its outer end, said one hollow jamb having an opening in its inside wall, a plate secured to the outer side of the inside wall of said one jamb over the opening, a thrust bearing carried by said plate, a screw mounted in said thrust bearing and extending to the outside wall of said one hollow jamb, a thrust bearing mounted on the inner side of the outside wall of said one hollow jamb supporting the outer end of the screw, means on the end of the screw inward of said one jamb for manually rotating the screw, and a nut on the screw having a pin extending laterally therefrom into the slot in said one arm and slidable in the slot.

3. In a window comprising a window frame having side jambs at least one of which is hollow and which has an inside wall and an outside wall, a plurality of rotatable shafts extending between the jambs, each shaft at one end projecting into the hollow jamb, each shaft carrying a louver type window sash: operating mechanism for the sashes comprising a crank arm fixed to each shaft at said one end thereof within the hollow jamb, means within the hollow jamb connecting the outer ends of said arms for conjoint rotation of the shafts, one of said arms comprising a pair of plates spaced axially with respect to the related shaft, each plate having a slot therein extending at an angle to the line between the axis of the related shaft and the point of connection of the plates to said connecting means, said slots being coplanar and open at their outer ends, said hollow jamb having an opening in its inside wall, a plate bolted to the outer side of the inside wall of said hollow jamb over the opening, a thrust bearing carried by said plate, a screw mounted in said thrust bearing and extending between said plates to the outside wall of said hollow jamb, a thrust bearing mounted on the inner side of the outside wall of the hollow jamb supporting the outer end of the screw, means on the end of the screw inward of the hollow jamb for manually rotating the screw, and a nut on the screw having a means extending laterally therefrom into said slot and slidable in said slots. Y

4. In a window comprising a window frame having hollow side jambs, each having an inside wall and an outside wall, a plurality of rotatable shafts extending between the jambs, the ends of the shafts projecting into the hollow jambs, each shaft carrying a louver type window sash: operating mechanism for the sashes comprising a crank arm fixed to each shaft at each end thereof within the hollow jambs, elongate bars within the hollow jambs connecting the outer ends of said arms for conjoint rotation of the shafts, one of said arms in one jamb comprising a pair of plates spaced axially with respect to the related shaft, each plate having a slot therein extending at an angle to the line between the axis of the related shaft and the point of connection of the plates to the respective bar, said slots being coplanar and open at their outer ends, said one hollow jamb having an opening in its inside wall, a plate secured to the outer side of the inside wall of said one jamb over the opening by means of patch head bolts, a thrust bearing carried by said plate, a screw mounted in said thrust bearing and extending between said plates to the outside wall of said one hollow jamb, a thrust bearing mounted on the inner side of the outside wall of said one hollow jamb supporting the outer end of the screw, means on the end of the screw inward of said one jamb for manually rotating the screw, and a nut on the screw having pins extending laterally therefrom into said slots and slidable in the slots.

References Cited in the file of this patent UNITED STATES PATENTS Tracy Dec. 20, 1932 Ferri Sept. 27, 1938 Brundage June 10, 1952 Baumann Aug. 26, 1952 Schottenberg May 5, 1953