US1590763A - Window structure - Google Patents

Description

June 29 1926.

W. J. KLEMM WINDOW STRUCTURE 7, 1925 2 Sheets-Sheet 1 Filed Oct.

June 29 1926.

w. J. E/(LEMM WINDOW STRUCTURE 1925 2 Sheets-Sheet 2 Filed Oct. 7

Patented June 29, .1926.

UNITED STATES PATENT OFFICE.

WILLIAM J. KLEMM, or CHICAGO, ILLINoIs, ASSIGNOR- T0 RUDA MANUFACTURING COMPANY, OF CHICAGO, ILLINoIs. A CORPORATION or ILLINOIS.

WINDOW STRUCTURE.

Application filed October 7, 1925. Serial No. 60,947,

My invention relates to window structures, particularly that type in which the window sash, in addition to being vertically slidable, is adapted to be swung on horizontalaxes to serve as ventilation deflectors and also to be in better position to be washed from the inside of the building.

The important object of my invention is to provide improved simple and efficient means for securely locking the sash against accidental vertical movement when it has been swung to inclined position. In accordance with my invention I provide friction or" brake mechanism which, when the sash is vertical and parallel with the runways, is rendered inoperative so that the sash may readily slide, but which, as soon as the sash is swung to inclined position, is released and is then controlled by the weight ofthe sash or the counterweight to exert friction or braking pressure-against the walls of the sash runway to securely lock the sash against sliding.. movement in the runway when the sash is in inclined position. The braking mechanism is released for operation or rendered inoperative by means of cam mechanism controlled by the swinging moveent of the sash.

The above and other features of my invention are incorporated in the window structure shown on the drawings, in which Fig. 1 is a front elevational view of a window frame with the sash therein;

Fig. 2 is an enlarged sectional view onplane 2-2 of Fig. 3;

Fig. 3 is a sectional view on plane 33 of Figs. 1 and 2;

Fig. 4 isa sectional view on plane 4-4 of- Fig. 3.

' sheet metal and within these weather stripping frames are the runner structures 17 and 18 to which the lower and upper sashes,

respectively, are attached. As shown, the:

sash stiles areof sheet metal formed to cooperate with the weather strip frames to is shown swung inwardly and the upper sash is vertical. Each sash at each of its lower corners has a pivot pin 21 which is held and journaled in the lower end of the respective runner frames, these runner frames being of channel shape, as clearly shown in Fig. 2. Above each pivot connection a supporting bar 22 is pivoted at its outer end to the respective side of the sash by means of a preferably detachable pivot pin or other suitable device 23. At its inner end each bar is pivoted to a pin 24 which extends into the respective runner frame through a longitudinally extending slot 25 and secured to a cam plate 26. The cam plate is of a width to fit between the side walls of the runner frame and at its upper end has the inclined cam or wedge surface 27. With this arrangement, as the sash is swung, the arms or bars 22 will shift the cam plates vertically in the runner frames. In each runner frame above the slot 25'therein is a brake shoe plate 28 havin the deflection 29 forming a brake shoe. or passing through the notch or opening 30 in the adjacent side wall of the runner frame to exert friction against the adjacent wall of the runner receiving channel 13 and 14 to thus brake or look vertical movement of therunner frame in the channel. The brake shoe plate is pivoted by a pin or rivet 31to the web of the runner frame so that as the plate revolves around the pivot the brake shoe extension will be withdrawn from or projected through the I opening 30. At one side of the pivot 31 a link 32 is pivotedto thebrake shoe plate,

the link serving as a fastening for'the chain or chord which travels over the respective I point, may rest so away from the the window frame so that with the sash supported outwardly through "the opening 30, andtherefore when a sash hangs against the pull of'the sash weights, the tendency will be for the brake shoe plates to be swung mto braking position. The lower rear edge of the brake shoe plate forms a cam surface 33 against which engages the cam or wedging surface 27 of the cam plate which is shifted by the swinging movement of the sash. As the sash is swung into its vertical position, the cam plates at the opposite sides thereof come into camming or wedging engagement with the brake-shoe plates and these plates are then swung in direction to bring in their brake shoes through the openings 30 and window frame surface so that the sash with its runner frame may then be readily vertically shifted in the windowframe. been swung sufficientlyto disengage its cam plate from the brake shoe plates, then the pull of the chords or chains on these brake shoe plates will cause them braking or interlocking engagement with the runner frames thereon will be locked against vertical movement in the window frame. Thus braking-or locking mechanism which is normally inoperative is released for operation when a sash is swung to inclined position. I

After the lower sash has been raised a distance to clear the weather ridge 34 on the sill 10, and the upper sash has been dropped a distance to clear the channels in the head 11, either or both of the sashes'may be swung inwardly, in which position they are readily accessible from the inside of the building for Washing and cleaning. The length of the bars22 and the extent of the slots 25 determines the limit of swing of the sash. In the arrangement shown, the sash may be swung to positions at right angles with the window frame. It may be desirable to hold oneof the sashes, preferably the lower sash,-

in only'slightly inclined position to direct mcoming ventilating air upwardly into the room and prevent direct blowing into the room ofthe air. I therefore provide supporting pins or lugs 35 on'the opposite sides of the window frame against which the lower sash, a short distance above its pivot that the sash will be held in only slightly inclined position, when the sash is raised only a short distance vertically. By raising the sash higher, its inclination can beincreased, and as soon as the lugs 35 are cleared, the sash can be swung into horizontal position. In Fig. 3 full lines show the lower sash in horizontal position'and dotted linesv show it in slightly inclinae5d position and resting against the ugs As' before stated, the connection between the sash and the bars 22 is preferably de- 3 and 4. The webs of the However, as soon as a sash hasto swing intotachable. The connection of the pivot pin 21 with the lower end of the runner frame is also preferably detachable in order that the sash may be readily installed and also that they may be readily removed for repair purposes. The pivot connection between the sash and the runner frame is shown in Figs. runner bars have each a longitudinal notch 36 extending from the lower edge thereof, and into this notch the respective pivot pin 21"is inserted. A plate 37 having a longitudinal slot 38 is then inserted between the side walls of the runner frame with the slot end abutting against the pin so as to confine the pin between the end of the notch 36 and of'the slot 38. The plate 37 is held in place by a nut 39- which extends between the side walls ofthe runner frame and receives a screw 40 extending through the web of the runner frame, the inner end fthe plate 37 having the flanges 41 which abut againstthe upper edges of the nut and so look the plate 37 in looking position. When it is desired to removethe sash from the. window frame, the screws 40' are withdrawn, whereafter the nut can be removed and the plate 37 withdrawn so that the'sash'pivot pins can then disengaged fromthe notches 36. Then when the bars 22 are detached from the sash, the sash will be free to be removed. The sash can as readily be inserted into the window frame.

Along the sides of the lower sash at its inner side the stiles are offset, as indicated at 42, to leave space 43 between the sash andthe respective runner frame for the accommodation of 'the supporting bars 22. y

The upper sash has similar offsets 44 to leave the spaces 45 for the supporting bars 22 for such sash. On the outer side, the

vertical stiles of the lower sash have the vertical grooves 46 for receiving the inner edges of the weather strip structures 16. The outer sash has The inner frame. end 50 of the weather strip structure 15 is engaged by the offsetparts 42 of the inner sash, while the intermediate sections 51 of the weather strip structure 16 engage with the offset portions 4401' the upper sash. These engagements of the Weatherstrip structures withthe sash will not interferewith the swinging move: ment of the sash. lVhen the sashes are in verticalposition, this weather-stripping engagement will seeurelyseal the space be tween the sash and the runner frames.

I thus provide a window structure in which the sash can be readily raised and lowered, and readily swung inwardly to inclined position. The looking or braking mechanism for locking the sash structures against vertical movement when inclined, are equally efiicient for any angle of incli-- nation of the sash.

similar grooves 47 for-re .ceiving the outer edges of the weather strip til 4 I do not desire to be limited to the exact construction, arrangement and operation shown and described, as modifications can be made which will still come within the scope of the invention.

I claim 1. In a window structure, the combination of a window, framev having upright side channels, runners slidable in said channels, a window sash pivoted to said runners for swinging movement thereon, brake shoe structures on said runners, window weights and chords therefor connected with said brake shoe structures and tending to move said structures into frictional engagement with the window frame whereby to prevent sliding movement of said runners, and

means controlled by the swinging movement of said sash for preventing operation of said brake shoe structures when said sash is in closed position and for releasing said structure for operation when the sash is swung to open position.

2. A window structure comprising a window frame having upright side channe1s,.

runners slidable in said channels, a window sash pivoted to said runners for swinging movement relative thereto, pivoted locking members in said runners, window weights and chords therefor connected with said locking members and adapted to swing them i into locking engagement with the window frame to thereby prevent sliding movement of said runners in said channels, and means controlled upon swinging movement of said sash for preventing operation ofsaid locking members when said sash is swung to closed position and for permitting operation of said members when said sash is swung to open position.

, 3. In a window structure, the combination of a window frame having upright side channels, runners slidable in said channels,

a window sash pivoted to said runners for swinging movement. interlocking mechanism for preventing sliding movement of said runners in.- said frame channels, window weights, chords extending from said weights and connected with said interlocking, mechanism and tending to cause operation there of, and means controlled upon swinging movement of said sash for rendering said interlocking mechanism inoperative when the sashis swung to closed position and for releasing it for operation when the sash is swung into open position.

4. In a window structure, the combination of a window frame having side channels. runners slidable in said channels, a window sash pivoted to said runners for swinging movement thereon, locking mechanism carried by said runners for cooperating with the window frame to prevent sliding movement of said runners, window weights. chords extending from said weights and connecting with said locking mechanism, the pull of said chords on said locking mechanism tending to move said locking mechanism to operative position, and a cam member slidable within said runners and controlled by the swinging movement of said sash, said cam member being displaced from said locking mechanism when said sash is swung to open position whereby said locking mechanism may thenbecome operative to lock said runners against sliding movement, and said cam members being brought into cooperation with said locking mechanism to shift said locking mechanism to inoperative position when said sash is swung into closed position.

5. In a window structure,'the combination of 'a window frame having upright side channels, running slidable in said channels, a window'sash pivoted to said runners for swinging movement, locking mechanism within said runners for cooperating with the window frame to lock said runners against sliding movement, means tending to move said locking mechanism into operative position, controlling members shiftable in said .runners, connections between said slnftable members and said sash for causing shifting movement of said members when said sash is swung, said shifting members cooperating with said locking mechanism to make it inoperative when said sash is swung to closed position, and releasing said locking mechanism to permit operation thereof when said, sash is swung to open position.

6. In a window structure, the combination of a window frame having upright side channels. runners slidable in said channels, a sash pivoted to said runners for swinging movement. locking mechanism, means tending to actuate said locking mechanism to lock said runners to said frame to prevent sliding movement of said runners, cam members within said runners, said runners having slots extending longitudinally, bars pivoted to said sash and connected with said cam members through said slots whereby swinging movement of said sash will cause longitudinal movement of said cam members in said runners, said cam members having camming engagement with saidlocking mechanism'to render said locking mechanism inoperative when said sash is swung to closed position and said cam members being released from said locking mechanism to permit operation thereof when said sash 1s swung to inclined position.

7 .In a window structure, the combination of a window frame having side grooves, runners slidable in said grooves, a window sash pivoted to said runners for swinging movement thereon, said runners having side openings, levers pivoted to said runners and having brake shoe extensions adjacent to said openings, means tending to swing said levers to project said brake shoe extensions through said openings into frictional engagement with the window frame to thereby lock said runners against sliding movement, and means controlled when said window sash is swung to swing said levers to withdraw their brake shoe extensions from the window frame when said sash is swung to closed position and to release-said levers for operation when the sash is swung into open position.

8. In a window structure, the combination of a window frame having side channels, runners slidable in 'saidchannels, a window sash, pivot pins extending from said sash, said runners having each a slot at its lower end, said pivot pins being received in said slots to thereby pivot said sash for swinging movement relative to said runners, and de-' tachable means for locking said pins in said slots.

9. In a window structure, the combination of a window frame-having side channels, runners slidable in said channels, a window sash, pivotpins extending from said sash, saidrunners having each a slot at its lower end, said pivot pins being received in said slots to thereby pivot said sash for swinging movement relative to said runners, a locking plate for each runner having a slot for receiving the respective pin and for cooperating with the slot to form a bearing for said pin, and means for securing said plate in looking position;

In witness whereof, I hereunto subscribe my name this 30th day of September, 1925.

WILLIAM J. KLEMM.

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