US2185888A - Window sash - Google Patents

Description

Jan. 2, 1940. El E. DoNAHoE `WINDOW SASH Filed March 28, 19:59

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A TTORNEY.

Patented' Jas.- z, 1940v UNITED s'rrxrl-:s

PATENT oFFlcE WINDOW sash Ellis E. Donahoe, Dormonala., assignor. to The Don-Economy Window Company, Ilittslznurgh,Y Pa., a partnership composed of Ellis E. Donahoe, Benjamin M. Classy,- Thomas H. McGregor, and Charles A. Roland L Application March 28,

s claims.

improved sealing arrangement for bridging the spaces between the edges of a rotatable window and the frame in which the same is mounted.

Another object of my invention is to provide a structure of the character referred to wherein the strips which make the seal, serve also as locking strips to normally prevent tiltingv of the window sash, and will be automatically shifted between their operative and inoperative positions simply through raising and lowering of the window sash.

Still another object of my invention is to provide an improved form of pivotal connection between the swinging sash and stationary parts of .the structure, whereby the sash can be yieldably held at desired tilted positions, and wherein the parts of the pivotal connection are snugly held `to avoid looseness and play, such parts being nevertheless readily disconnectible in order `to permit complete removal of the window sash from itsframe.

One form which my invention make take is shown in the accompanying drawing, whereinv Figure 1 is a face view partially elevational and partially in section, of a window structure embodying my invention; Fig. 2 is a vertical sectional view through the same; Fig. 3 is an enlarged view taken on the line III-III of Fig. l; Fig. 4 is a. sectional view on an enlarged scale, showing the members whereby a detachable pivoted connection is provided between the window sash and the stationary members of the structure; Fig. 5 is a view taken on the line V-V 4oil Fig. 4; and Fig. 6` is an end view of the structure of Fig. 4.

For convenience of illustration, I have shown a window sash mounted in frames of somewhat the usual form and having rotativemovement about a horizontal axis, but it will be understood that the invention is applicable alsoto awindow sash which is mounted for movement about a vertical axis.. y

The window frame is composed'of side-frame `- members 5 and 6 andk a sill member 1. The numeral 8 represents. the lower sash, and the numeral 9 a portion ofthe upper sash which may .be constructed and mounted in substantially the same 'manner as the sash 8, to be hereinafter described. A pane of. glass A is secured in the i939, serial No. 264,539

sash in the usual manner, and guide strips I and H are secured to the side frame members :and 5. Between each pair of'guide strips I0 and II a sash strip .I2 is slidably mounted, as shown more clearly in Fig. 3. lThesestrips I2 may be formed separately from the vertical bars 8a of the sash 8, or willbe cut thereiromin case it is desired to apply my invention to la window sash .of a standard form.'` The adjacent portions of the members 8a and lI2 `are provided with vertical grooves for the reception of a locking and sea-ling bar i3, thedepth of the groove in each of the sash members 8a being substantially equal to the width cfits'contained bar I3. Each bar I3 is.

strips I2 by means to be hereinafter described, soI

that lwhen the locking and `sealing bars I3 are pushed entirely clear of the slots in the members I2 4and into the sash members 8a, the sash 8 can readily be tilted, somewhat as shown in Fig.

2, or kcan .be entirely reversed to permit cleaning both sides of the glass, Awithout draft through the When the sash 8 is-lowered against the sill 1,

y as shown ,in Fig. 1, the locking bars I3, which are somewhat longer than the sash, are projected upwardly and outwardly into the vertical slots inthe sash strips I2., as shown more. clearlyl in Fig.. 3,. and at the left-hand sidev of Fig. 1. sash Ii` istherefore rigidly locked against tilting movement, and the space between the sash kmembers 8a andlZ is sealed to keep out cold air and moisture. The usual ropes and. pulleys V(not shown) may be attached to the sash strips I2', and the sash member 8 and the strips raised and lowered as a unit.

Since the locking strips I3 can be moved inwardly `to their retracted positions within the sash 8 by simply raising the lsash 8 until the upper ends of.` 'such strips strike the top of the window frame, as the lower endseof the strips I3 will then project below the Window so as to be TheI moved again into locking position when vthe sash y ends of the sealing strips for shifting them longitudinally, in many cases this would be a difficult operation, because they often become rusted, bound by grit or warped, whereas the momentum of the window in raising and lowering it will impart sufficiently sharp blows to the `ends of the sealing strips to effect shifting movements thereof.

The upper sash 9 may be mounted in substantially the same manner as the sash 8, but theA locking strips I6 of such upper sash will preferably have their slots I1 of reversed angularity with respect to the angle', of the slots I4 in the strips it, so that when the upper sash is raised and the locking strips are consequently in their lowermost position, they will be' projected into locking position within grooves in sash strips corresponding to the strips l2@ The pivotal connections between the swinging sash and the stationary members comprise a plate 29, set into each of the sash strips I2 and suitably secured thereto by screws; a second plate 2l set into and secured to the sash member 8a, and a shaft 22 that serves as a pivot pin, the shaft having suitable bearing support in the plates 20 and 2 l. A bushing 23 loosely surrounds the shaft 22 and is providedv with a pair of arms 24. A spring 25 is interposed between the bushing 23 and a fixed collar 26 on the shaft 22, so that the bushing 23 is yieldably projected toward the plate 2li and the arms 24 will be yieldably held in radiating grooves 21 on the inner face of the plate 20. The arms 24 lie partially within long slots formed in the plate 2l so that they in effect bridge the plane between the meeting faces of the plates 2B and 2|. With the locking strips fully withdrawn into the slots in the sash members 8a, the sash 8 can be tilted on its pivotal supports and will be yieldably held at various positions by reason of the arms 24 extending into the radial slots 27 of the plate 20, the outer faces of the arms 24 being rounded so that they will readily slide out of the grooves 21 when tilting the window sash. l

During swinging of the sash and movement of the spring-pressed retaining arms 24 from one slot 2 to another, the plates 2| and 20 and the sash members to whichthey are connected will not be spread apart, because thecamming move- 'ments imparted to the arms 24 when passing from one slot 2l to another slot 27 will simply result in the arms being pushed slightly outwardly within their plate 2l, against the spring 25. It will be seen that the bushing 23 and the arms 24 can readily be replaced when they become worn.

At its inner end the shaft carries a pin 28 which, when in a vertical position, can pass through a vertical slot 29 in the plate 20, to the rear side of such plate, whereupon turning of the shaft through 90 will move the pin 28 to the position shown in Figs. 4 and 6, vat which it will engage notches in a boss on the rear side of the plate 2U and the window sash 8 thereby snugly held in position, byreason of the expansive force of the spring 25. This locking together of the parts willnot interfere with the swinging of the sash and its plate 2l relative to the plate 20 and the 'stationary sash member l2.

with a knurled head3l which is tapped to receive the threaded end of a handle 32, whereby the shaft 22 can be operated in opposition to the spring tension, to connect and disconnect the window more readily than it could be done simply by turning the knurled head 3l. It will be seen that when the sash bar has been placed in position and the member 30 removed, there are no projecting parts that invite tampering,` or which k interfere with operating or cleaning the window.

Froml the foregoing it will be seen that my invention has a further advantage in that the sash can be detached from the frame without the need of` removing'stop beads and parting beads, for the purpose of renewing sash cord or chains, reglazing, applying weather stripping, etc. Also it can be employed with various types of metal sash structures as well as to wood sash.

I claim as my invention:

. 1. The combination with a window frame, of a sash structure comprising sash strips slidably supported on the frame and each having a longitudinally-extending groove in its inner surface, a sash member disposed between said strips and having grooves that are normally opposite to the grooves in said strips, means for movably supporting the sash member onsaid strips, a locking strip supported in each groove of said sash member and movable laterally so that its inner edge will extend into the groove of the adjacent sash strip, the locking strips being of greater length than the sash member, and guide means for effecting movement of thelocking strips laterally into the grooves in the sash strips when the sash member is moved into engagement with one-end of the said frame and for effecting lateral movement thereof out of the last-named grooves when the sash member is moved into engagementfwlth the other end of the said frame.- l

2. The combination with a window frame, of a sash structure comprising sash strips slidably supported on the frame and each havingl a longitudinally-extending groove in its inner surface, a sash disposed between the sash strips and having grooves that are normally opposite the firstnamed grooves, means for movably supporting the sash -member on said strips, a pin extending across each of the grooves in the sash, and a substantially straight locking -strip lying within each sash groove and having angular slots whose walls are engaged by one `of the pins and so arranged that when the locking strip is moved upward relative to the sash, its outer edge will enter the groove in the adjacent sash strip, and when moved in the opposite direction it will bewithdrawn into its groove in the sash to permit movement of the sash independently of the sash strip, the locking strips being of greater length than the length of the sash so that when the sash is lowered against the lower vend of the window frame, the outer edges of the locking strips will be projected into the grooves of the vsash strips, and when the sash structure is elevated into contact with the upper end of the window frame, the locking strips will" be forced into retracted position within the grooves in the sash.

3. The combination with a window frame of upper and lower sash structures each comprising sash strips slidably supported on the frame and each having a longitudinally-extending groove in its inner surface, a sash member disposed bethat are normally opposite the grooves in the strips, a p in extending across each ofthe grooves in the edges of the two sash members, and a locking strip lying within each of the vsash grooves 7o tween each of the sash strips and having grooves is lowered against the lower end of the Window frame, the outer edges of its locking strips will and having an angular slot Whose Walls are engaged by one of said pins, the slots in the locking i strips of the lower sash member being so arranged that when the strips are moved relative to the sash, their outer edges will enter the grooves' in the adjacent sash stripsand when moved in the opposite directions they will be Withdrawn into the grooves in the sashto permit movement of the sash independently of the sashstrips, the

locking strips being of greater length than the length of the sash so that when the bottom sash be projected into the grooves of the adjacent sash strips, and when the sash structure is elevated into contact with the upper end of the window frame,v the locking strips will be forced into re tractedposition Within the grooves in the sash,

upper end of the Window frame, such strips will such upper sash is lowered into` engagement with the lower endof the frame, its locking strips `will be forced `out of the grooves in the adjacent sash strips.

C ELLIS E. DONAI-IOE.`

be forced into locking engagement with the.v t

. grooves in the adjacent sash strips, and when -10

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