US2249132A - Window - Google Patents

Description

H. c. HASLAM V 2,249,132

WINDOW Filed Oct. 16, 1939 3 Shets-Sheet 2 v INVENTOR. ff. CHas/am K mm A TTORNEY Patented July 15, 1941 .UNlTED stares PATENT orsice Wmnow HenryGH aslam, Chowchilla, Calif. Application October 16, 1939, SerialN0. 299,684 7 Cam's. (01. 20-42) This invention relates to double hung sash windows, 'my'main object being to connect the sashes in such a manner that lowering of the upper and outer sash is controlled by the raising of the inner lower sash; while at the same time enabling the lower sash to be then returned to a closed position if desired while leaving the upper sash in an open position.

A further object is to provide a connection between the sashes and a locking means for the lower sash which avoids the need of the usual catch between the horizontal rails of the sashes and which connection is so arranged that when both sashes are closed and the lower sash is locked, the upper sash cannot then be lowered.

A further object is to provide means to counter-balance the sashes with each other so as to eliminate the need of the usual sash weights for each sash, and whichmeans is arran ed so as to allow of a certain amount of independent move ment of the sashes relative to eachother.

A further object of the invention is to produce a simple and inexpensive device and yet one which will be exceedingly efiective for the purpose for which it is designed.

These objects I accomplish by means of such structure and relative arrangement of parts as will fully appear bya perusal of the following specification and claims.

In the drawings similar characters of reference indicate corresponding parts in the several views:

Figure l is an inside elevation'oi' a double sash window partly in section to show the location .of

the various cable pulleys and the. locking device of the dog and slide when the upper sash is being lowered by upward movement of the lower sash; Figure 6 is a transverseview on line 66 of Fig. 1 showing the sash counter-balance means. V

Figure '7 is a fragmentary enlarged transverse section on line 1-1 of Fig; 1 showin thelocking means for the lower sash.

Referring now more particularly :to the characters of reference on the drawings, the window structure generally is of conventional form. comprising a casing i, an interiorlowersash? 2, and

an upper outer sash 3, both sashes being'slidable in the casing and separated by the usual stops 4. A pulley 5 is mounted on one side of the casing at the top and substantially central of the stops 4, the latter being cut away to enable 1 the pulley bracket to be mounted flush against the side of the'casing as shown. Q Y A flexible cable 6 extends over this pulley, being anchored by suitable means, as indicated at l, at jone end on the adjacent side edge'oithe outer sash near'the top, and being connected atits opposite end to the upper end of a tension spring 8 which at its lower end is anchored on the adjacent side edge of the lower sash 2 near the bottom as shown in Fig. 6. The side edges of the sashes are recessed or rabbeted for the exten't'necessary to clear the pulley, the cable and the spring so that the casing does'not have to be cut into and so that there is no possible binding or Wedging between anypart which would Q throughout its length intothe sash; but the latter 7 is additionally rabbeted, as at l5, all about'the' is'mounted in vertical al'inement with the pulley 9 but at'a point on the casing adjacent the lower edge of the upper sash when the latter is closed. A flexible non-extensible cable H, which is 'in effect endless, passes between and overthe pul eys. The ends of the cable are disposed adja-f cent each other on the interiorrun of the cable and are adjustably anchored on the adjacent side edge of the 'inner sash 2 near the topby' suitable anchoring or clamping means indicated "at 12. The other and outer run of the cableis secured on a slide l3 which embraces a vertical bar' M mounted at its endson the adjacent side edge ofthe upper outer sash 3.

This. bar is not only deeply countersunk bar so 'asrto allow free movement ofthe slide except at the ends of the bar and'thus leaving 2. horizontal shoulders lfi in the 'sash'which'limit Figure 5 is a similar view showingthe' position 5 the movement of tlfi slide; The sashes "are also recessed or rabbeted from" top to bottom tore- V ceive the cable and the laterally projecting POT", V tions of the pulleys so that no binding or chafing ,1 between the parts ,is possible.

'I 'he slide I3 is provided with'an enclosed up .wardlyjfacing gravity actuated dog l1 adapted to '[engage downwardly facing ratchet-like on the innersash of the bottom rail of the lowersash so .as to be substantially flush therewith,

the lower portion of this rail below the plate being,flas usual, overlapped when the sashis closed .by the. adjacent member 2!) .oijthe vdndow' sill. Adflush strike platev 2], is mounted. on the a topof saidmember, the latter .havingarecess 22 below said plate and iacing the sash to'fre if ceive a latch element 23. This element is beveled on its lower edge and is adapted to engage the under surface of the opposite portion of the plate 2| in holding relation when the sash is closed.

This latch element is movable laterally of the sash in a recess 24 cut in the sash rail below the plate I9, and communicating with the recess thereof through a slot 25 in the bottom of said plate recess. Said latch element is disposed in rigid relation with and at the bottom of an upstanding strip 26 which projects through the slot 25 to a laterally swivel connection with the plate I9 at the top of its recess as shown in Fig. '7. The latch unit is disposed so that the element 23 normally projects laterally inward of the window, or so that it overhangs the strike plate, and as previously indicated, is positioned at a level such that when the sash is closed it closely engages the under side of the strike plate.

To release the latch it is only necessary for the operator to press against the strip 26 until the latch clears the strike plate, as indicated in dotted lines in Fig. 7, which enables the sash to be raised. This latch releasing operation may be done by the fingers of the same hand used to then raise the sash.

When installing the window structure, the cable II is adjusted at its anchored end so that when both sashes are closed and the lower sash is latched, the slide I 3 is in a position such that the dog I! then engages with the lowest notch I8 as shown in Fig. 4. The upper sash cannot therefore be lowered and both sashes are effectively held against opening from the outside without the need of any direct catch device between the sashes along their adjacent rails as is now used, and which is not only somewhat unsightly, but interferes with proper dusting and cleaning of the corresponding surfaces of the sashes.

When the lower sash is released and raised, the adjacent inner run of the cable II of course moves up while the outer run moves down, and the same is true of the corresponding runs of the counter-balance cable 6. A relatively small-up movement of the lower sash is sufilcientto lower the slide I3 so that it engages the bottom shoulder I6 on the upper sash and the latter is then lowered with any further upward movement of the lower sash as will be evident. Any difference in relative movement between-the sashes with the above or other sash movements is had without any slack in the cable 6 due to the spring 8 which is connected to said cable and which is normally extended somewhat. Both sashes may thenbe closed together if desired by an initial slow downward movement of the inner sash until the dog I! re-engages the lower notch I8 and pushes up on the bar I 4 and consequently on the outer sash.

If it is desired to close the inner sash without closing the outer sash, this may be done by initially moving said inner sash rapidly or so that the dog I1, which is initially below and clear of the notch I8 as shown in Fig. 5, will be moved upwardly passed said notch before gravity can effect the engagement of the dog with the notch. The upper notch I8 or the upper shoulder I6 of course limits the opening movement of the upper sash when the lower sash is thus closed.

The outer sash can then be closed either by a direct lifting thereof until the dog re-engages the lower notch, or by a re-opening movement of the inner sash until the dog re-engages said notch,

followed by a reclosing movement of said sash which will then cause both sashes to be closed as previously described.

It will be noted that the slide and cooperating parts are always invisible regardless of the position of the sashes, and that the pulleys are also concealed when the sashes are closed so that the only exposed elements are portions of the cables which do not detract from the neat appearance otherwise provided.

From the foregoing description it will be readily seen that I have produced such a device as substantially fulfills the objects of the invention as set forth herein.

While this specification sets forth in detail the present and preferred construction of the device, still in practice such deviations from such detail may be resorted to as do not form a departure from the spirit of the invention, as defined by the appended claims.

Having thus described my invention, what I claim as new and useful and desire to secure by Letters Patent is:

1. A sash window structure including upper and lower sashes disposed in different transverse planes, means operatively connecting the sashes to positively lower the upper sash by upward movement of the lower sash while enabling the lower sash to be again lowered without moving the upper sash from its lowered position, and separate means connecting the sashes in counterbalancing relation and arranged to function irrespective of relative movement between the sashes and through the entire range of travel thereof.

2. A sash window structure including upper and lower sashes disposed in different transverse planes, means operatively connecting the sashes to positively lower the upper sash by upward movement of the lower sash and arranged to cause downward movement of said'lower sash to raise the upper sash, and including means to enable the lower sash to be disconnected from the upper sash and lowered without upward movement of the upper sash, at the option of the operator and means then counterbalancing the lower sash irrespective of its movement through its full extent of travel. i

3. A structure as in claim 2, in which 'said counterbalancing means includes a, tension spring capable of expanding a distance substantially equal to the full travel of said lower sash.

4. A window structure including with a casing, upper and lower sashes slidably mounted in'the casing and disposed in difierent transverse planes, vertically spaced pulleys mounted on the casing with their axes in a transverse plane between the planes of the sashes, a substantially endless cable extending about and between the pulleys, means anchoring one run of the cable on the inner lower sash, a slide fixed on the other run of the cable,- a bar fixed on the upper "outer sash parallel to said cable run and engaged by the slide, a shoul der on said outer sash limiting downwardmovement of the slide on the bar whereby said sash will be lowered with downward movement of the slide, an upwardly facing dog mounted in the slide; the bar having a downwardly facing notch above the shoulder for engagement with the 'dog after the slide has cleared the shoulder a certain distance; the dog being arranged s'o-as to fail to engage the notch with a relatively fast upward movement ofthe slide from the shoulder. 5. A structure as in claim=4 in which the'slide is fixed on the cable at such a point that when both sashes are closed, the dog will be engaged with the notch.

' HENRY C. HASLAM.

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