Insect proof sliding sash window
US 1482426 A
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Description (OCR text may contain errors)
Feb. 5 9
- Y 1,482,426 H. c. L. us INSECT PROOF SLIDING SASH WINDOW Filed NW. 17, 1920 3 Sheets-Sheet 54;, z I. W2
Feb. 5 1924.
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INSECT PROOF SLIDING SASH WINDOW Filed Nov. 17 1920 3 Sheets-Sheet 3 FIG, 2.
'Feb. 5, 1924.
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INSECT FROOFLSLIDING SASH WINDOW 1920 3 Sheets-Sheet 3 Filed Nov. 17
Patented Feb. 5, 1924.
UNITED STATES PATENT OFFICE.
HERMAN CHRISTIAN LOUIS AUS, or HAMILTON, NEWCASTLE, NEW SOUTH WALES, AUSTRALIA.
INSECTPROOF SLIDING-SASH WINDOW.
Application filed November 17, 1920. Serial No. 424,755.
T 0 all whomit may con-06m Be it known that I, HERMAN CHRISTIAN LOUIS AUs, a subject of the King of Great Britain and Ireland, residing at 23 Emerald Street, Hamilton, Newcastle, in the State of New South Wales, lommonwealth of Australia, have invented certain new and useful Improvements in Insectproof Sliding-Sash \Vindows, of which the following is a specification.
This invention relates to windows having inner and outer sashes sliding vertically in the frames, and the object of the invention is to effect certain improvements in such windows whereby they may be rendered proof against ingress of flying insects at the same timeproviding for ready access to the saslrhanging and other gear for adjustment or renewal thereof.
According to this invention the frame of the window has in addition to the usual side sash-weight boxes, a. horizontal box at both the top and bottom, said sash weight boxes and said upper box having hinged closures on the inside of the window so that access may be had to the interior, and said boxes may conveniently be constituted by the architraves or portions thereof.
In each of said horizontal boxes is a pivotal roller disposed transversely of the window; and on each roller is secured one edge of a wire screen which is wound upon the roller.
These screens are passed through slots formed respectively in the sill and in the lintel of the sash-compartment of the frame,
- and are terminally fitted with transverse angle irons from which project lugs adapted to engage in sockets sunk in the upper rail of the outer sash and in the lower rail of the inner sash, said sockets each carrying a spring-held detent which engages the lug,
and is releasable by means of a key or the like. The lugs and catches are so made that they automatically engage when forcibly pressed together.
It will thus be seen that when either sash is opened its attached screen is unwound from its roller and extended completely over the opening. Rewinding of the screen when the sash is closed is effected by means of the sash cords which are wound about the respective ends of the respective rollers and through guide pulleys, sash weights being hung on the said cords.
To more clearly describe my invention I will now refer to the accompanying drawings in which Fig. 1 is a perspective view of a window according to this invention, both sashes being partly open.
Fig. 2 is an elevation from the inside, with the sash-weight boxes and roller boxes open so as to show the internal gear in each.
Fig. 3 is a sectional elevation through the sashes, and
Fig. 4 a similar view through a sashweight box in which the cords are indicated diagrammatically.
Fig. 5 is a detail of a sash guide pulley.
Fig. 6 is a detail showing the means of attaching a screen to a sash.
Fig. 7 is a sectional fragmentary front view showing a catch member on the sash engaging the screen catch member, and
Fig. 8 a sectional side view of the same.
The inner and outer sashes 10 and 11 re spectively are mounted to slide in the frame in the usual way, said frame having sash weight boxes 12, 12, and horizontal boxes 13 and 14: at the top and bottom respectively.
In each horizontal box is a roller 15 pivoted axially on brackets 16, 16, and each roller has at its respective ends right and left hand helical grooves as clearly shown in Fig. 2. On each roller is wound a screen 17 of wire mesh passed through slots 18 in the members 19 19' dividing each roller box respectively from the sash compartment of the frame (see Fig. 4), the lower one of said members constituting the sill.
The screens which are of sufiicient width to span the width of the sash compartment of the frame, are each terminally fitted with a transverse angle iron 20 on which are catch members 21, 21, designed to engage with complementary spring catch members fitted on the top and bottom rails respectively of the sashes, the engagement of said catches releasably securing the ends of the screens to their respective sashes.
Each catch member fitted on the sashes comprises a detent 22 (see Figs. 6 to 8) having a pivot pin 23 pivoted in a box or housing 24 let into the sash rail, said detent being held in normal position by opposing springs 25, 25, against which the detent may be deflected by rotation of pin 23 by means of a key or the like applied to the squared end 26 of said pin 23 projecting from the housing 2% The catch members are so constructed that they automatically engage when the sashes are brought into contact with the angle irons on the respective screens. At the same time the catches being readily released, the sashes may be moved in the usual way as and when it is desired to clean the glass.
The sashes are hung on sash cords and to facilitate the attachment thereto and removal therefrom of the cords without taking the sashes from the frame, each usual groove is extended the full length of the sash stile and slightly returned under the lower sash rail where the end of the cord is secured by a nail or screw 29. Referring to the inner sash, the cords 27, 27 leading from the pulleys 28, 28 are passed through the beforementioned. grooves and tern'iinally secured at 29, 29. Each cord 27 supports in a bight a sash weight or tensioning means 30 and then reeves over a pulley 31, thence through a guide pulley 32 mounted in bracket 33 (Fig. 5) affixed on. the hinged cover 34 of the weight box, and passing through a hole 35 in the sill 19 is terminally wound upon and secured to the helically grooved end of the screen roller 15.
The outer sash is supported by cords 36, 36 attached to the sash in the same manner as described in regard to the inner sash, each cord 36 supporting in a bight a sash weight 37, reeving through a guide pulley 38 similar to guide pulley 32 but mounted on the back of the weight box, and passing through a hole 39 in the upper frame member 19 is terminally wound upon and secured to the helically grooied end of the upper screen roller 15.
It will be seen that the balance weights exert a pull in opposite directions on each sash and its respective screen, thus keeping the latter taut in all positions of the sash. To maintain the sash in the open position l. provide one ora pair of eccentrically operatmg pawls such as 40 pivoted on the frame stops and designed to bear against the sash stiles but manually releasable as required.
It is to be noted that the sash cords are so Wound upon the respective rollers that the opening of a sash results in rotation of the hinged cover therefor, a drum having a flexible screen normally rolled thereon, means for attaching one end of the screen to said sash, a sash cord having one end attached to the sash and the other attached to said drum to rotate the same, a pair of pulleys in said frame, said cord having a bight' portion hanging between said pulleys, means for tensioning said cord carried by said portion and slidably related thereto and a third pulley mounted on said cover, said cord passing "from the first mentioned pulleys through the last mentioned pulley to the drum.
2. A window structure comprising a frame and a sash vertically slidab le therein, a weight box in said frame, and a vertically hinged cover therefor, a drum having a flexible screen normally rolled thereon, a bar at the free end of said screen, said bar and said sash having automatically operating means to attach said bar to said sash when the latter is moved into contact with said bar, and said attaching means including manually operable means to enable said sash to be disconnected from said bar, a sash cord having one end attached to the sash and the other attached to said drum to rotate the same, a pair of pulleys in said frame, said cord having a bight portion hanging between said pulleys, means for te-nsioning said cord carried by said portion and slidably related thereto, and a third pulley mounted on said cover box, said cord passing from the first mentioned pulleys through the last mentioned pulley to the drum.
Signed at Newcastle, N. S. I. this fitteenth day of October A. l). 1920.
HERMAN CHRISTIAN LOUIS 'AUS.