US2777687A - Window operator - Google Patents

Description

1957 D. N. JEWETT ET AL WINDOW OPERATOR Filed Dec. 29, 1952 2 Sheets-Sheet l N INVENTOR. e Z. G76 card kZw 2 Sheets-Sheet 2 INVENTOR. Y e72. c/Ewef/ WINDOW OPERATOR Jan. 15, 1957 D. N. JEWETT ETAL Filed Dec. 29, 1952 Unite rates WINDOW OPERATOR This invention relates to window operators for socall'ed projected-out vents, namely outwardly-projecting swinging windows.

One object of this invention is to provide a window operator for outwardly-projecting swinging windows which has a sliding resilient'connection between the window and the windowo'perating mechanism, thereby eliminating dangerously-projecting rigid' operating bars and the lost motion connections necessary therewith.

Another object is to provide a window operator of the foregoing character wherein at least part, and preferably the whole of'the window operating bar is of flexible material which bends automatically into an are as the window or vent moves outwardfrom the window opening, thereby compensating for the difference between the arcuate swinging motion of the Window operating bar in a single plane and'the arcuate swinging of the pivoted window or vent at right angles thereto.

Another object is to provide a window operatorof the foregoing character wherein'the end of the power arm makes: sliding contact with the flexible window operatingbar, the inner endof which is fixedly pivoted to the window sill and the outer endof whichslidably engages a guide track onthe window or vent;

Another object is to provide a window. operator of the foregoing character having a spring steel operating bar, the window operator being adapted either to steel or wooden frame windows.

Other objects and advantages of the invention will become apparent during the course ofthe followingsdescription of the accompanying drawings, wherein:

Figure 1 is a rear elevation of a projected-out vent or outwardly-swinging window equipped with awind'ow operator having a flexible operating bar, according to one form of the invention, as applied to a wooden window;

Figure 2 is a horizontal section taken/along the line 2-2 in Figure l, but with the window swung partly open;

Figure 3 is a vertical sectionvtaken alongthe line 3-3 in Figure 2, but with the window swungrstill further outward;

Figure 4 is a vertical section similar to Figure 3,but with'the window in its closed position;

Figure 5 is a vertical section through the fixedpivot of the window operating bar at the window sill,.taken along the line 55 in Figure 1;

Figure 6 is a vertical section through the sliding pivotal connection between a power arm and window operating bar, taken along the line 66 in Figure 1;

Figure 7 is a vertical section showing the sliding pivotal connection between the window operating bar and the window, taken along the line 7-7 in Figure l; and

Figure 8 is a vertical section similar to Figure 4, but showing the invention applied to a steel window.

Conventional window operators for moving so-called projected-out vents or outwardly-swinging windows. have not been successfully applied to such windows when they operate in a direction approximately perpendicular to ing the window, for thesame reason; present window operator; by reason of "the tighter action of its different linkage; is l'esssubject t'orattling and is 2,777,687 Patented Jan. 15, 1957 ice the window because of the difiicultyiof establishingan operating connection between-thefedge of the window which 'is swinging outward in an arcuate'pathin avertical plane' and the window operating arm which is" swinging outwardiman arcuate path in a'horizontal plane: Gon-- sequently, such windows have frequently been-operated merely by rigid'bars' which are pushed'or pulled manu and the inner endslid ablyengagin'ga guide track'on'the window sillas the-bar'is swung-outward=or inwardb'ya hotizontally 'swinging' power' arm which is either pivoted to or slidably engages'the window operatingb'ar; and which is actuated by a crank through intermediate gearing. The present invention provides afurther improvement wherein the operating bar isalsoatleast partially and preferably wholly of "flexible material, such as spring steel; the inner end, however; being fixedly pivoted to thewindow sill. The present window operator has a tighter clcsingaction than those of the above-mentioned co-pending'Jewett' application; due tothe'cammingacti'on of thesliding shoe'at the end of the power arm:a'ctihg upon the'flexible operatingbar, and same-'camming action possesses a greater mechanicaladvantagein open- Moreover, the

more'ri'gidl- Referring to'the drawings in detail, Figures 1' and 2 show a so-called projected out vent or: outwardly-projectingswinging window'unit, generallydesignated 10; consisting'gener'ally of a-wihdow frame- 1-1 and 'a'windo'wor vent 12 hinged thereto-as at" 1 3 and equipped with awindow operator, generally designated 1 4, according to one form of' the present invention; The window operator" 1% in Figures 1- to-4 inclusive is showrras applied to a-wooden window but-it is also=equallyapplicableto asteel window as described below and showniirFigur'e 8. The-open rectangular structure 15 formsthe border of the window 12 and carries the transparent window pane 16 which extends across the op'eninglTand is held in place by't'lie' putty or other sealing'material 1 8 (Figure' 3).

The window operator 14 is acuated'bya gearbox or actuatingunit, generally designated 20; mounted in a hollow housing'ZI which issecuredas at*22-Ttotliewindow sill 23 (Figure 2) and has a chamber z l cont'ainin'g; a gear 25 mounted" on a shaft 26whichis journaled in' a" boss 27 rising atan angle from the top' ofthehousing 21'; At its upperend'ou'tside the boss 27, the'shatt 26 carriesa hand crank'28 by which the shaft 26'i'srotated in'the bore -29 in-wliich it is'journaled' inthe boss*27i The gear 25 may be a helicalgear, a shown, abev'el'gear; a worm gear; or an ordinary pinion dependin'g' upon the'typeof gearing used; The gear Z'Srrtesheswitlithe teeth" 30'of a quadrant gear portion 31' of apo'wena'rm 32. The-'latteris pivotally mounted" upon' a pivot pin 33 supported within the chamber 24' in the housing 21' and projects" through a slot (not shown, but located along-the edge '34 of'the h'ousingllj. i

The" window operating arm 32atits'outerendisdrilled as at 35 (Figures 1' and 6TH! receive. a double' headed pivot pin 36 which extends through. a bore" 31in a slider 38' and isheldiinir'etention therewith"by"tlie enlargedhe'ad 39 engaging the 'couitterhore 40i Tliefslittef38 is iir'tlie 7 or guideway 41 extending therethrough from one end to the other. By this means, the slider 38 is pivoted to swing upon the pivot pin 36 and grooved to receive and slide along a flexible window operating bar 42 of spring steel orother suitable resilient material. The operating bar 42 (Figure 6) is of rectangular cross-section similar in configuration to the rectangular groove or guideway 41 in the slider 38.

, The inner. end of the operating bar 42 is drilled as at 45 (Figure to receive a double-headed pivot pin 46 mounted in-a vertical bore 47 in the bridge portion 48 of an inverted U-shaped bracket, generally designated 49, having legs 50 depending from the bridge portion '48 and provided with feed 51 drilled to receive the fasteners 52 by which it is secured to the window sill 23. In this manner,

the inner end of the flexible window operating bar 42 is pivotally mounted upon the fixed pivot 46 in the bracket 49- secured to the window sill 23.

The outer end of theflexible window operating bar 42 is drilled as at 55 to receive another double-headed pivot pin 56 (Figure 7) which in turn passes through and is secured with a bore 57 in one end of an angle arm 58 which is offset as at 59 from the base 60 of a second slider, generally designated 61, in such a manner that the midplane of the bar 42 passes through the center line of a pair of aligned bores 62 in a pair of upstanding ears 63 and 64 rising from opposite ends of the base 60 of the slider61. It will also be seen. (Figure 2) that the arm 58 is disposed nearer one ear 63 than the other ear 64, so that a more even pull or drawing action is obtained as the slider 61 slides along a guide rod 65 which passes through the aligned bore 62 in the cars 63 and 64. By reason of this construction (Figure 7),, he window operating bar 42 operatively engages the guide rod 65 with a double-pivoting action or mechanism constituting a universal joint by reason of the pivotal connections located at the bores 55 and 62, the slider 61 being capable of rocking on the rod 65 as it slides therealong (Figure 3), and the operating bar 42 pivoting on the pivot pin 56 attached to the arm 48 of the slider 61.

The guide rod 65 is provided at one end with an offset bent and flattened foot 66 secured as at 67 (Figure 2) to the lower portion of the window border structure 15. The opposite end of the guide rod 65 passes through aligned bores 68 and 69 in the U-shaped end portion 70 of a bracket, generally designated 71, which is approximately in the form of a question mark and which at its opposite end is provided with a hump 72 drilled to receive a fastener73 by which it is secured to the lower portion of the window border structure (Figures 1 and 2). A cover plate or strip 74 of L-shaped crosssection is secured to the window sill to conceal the oper- I ating mechanism.

.The modification shown in Figure 8 employs the same Window operator 14 but applies it to a metal window unit, generally designated 80, instead of to the wooden window unit 10 shown in Figures 1 to 4 inclusive. The metal window unit 80 consists of the usual metal window frame 81 and metal window 82 swingably attached thereto as by the hinges 83 (one only being shown) extending from the outer flange 84 of the window frame 81 to the outer flange 85 of the metal border structure 86 which surrounds and contains the transparent window pane 87 held within the opening 88 by the sealing compound 89. The

inner flange 90 of the window frame 81 is engaged by the inner flange 91 of the window border structure 86. Secured as by the fasteners 92 (one only being shown) to the inner flange 91 is the downwardly-extending flange 93 of an angle member 94, the horizontal flange 95 of which serves as a shelf or window sill upon which the inner end of the window operator 14 is mounted, in a manner similar to that described in connection with Figures 1 to 4 inclusive. Since the window operator 14 is of substantially the same construction as described in connection with Figures 1 to 4 inclusive, no repetition of the description thereof is required and similar parts bear the same reference numerals. In Figure 8, the angle foot 96 replaces the bent portion 66 on the end of the guide rod 65 of Figures 1 to 4 inclusive, but is similarly secured as by the fastener 97 to the inner flange 91 mentioned above.

In the operation of the window operator 14, as applied either to the wooden window unit 10 of Figures 1 to 4 inclusive or to the metal window unit 86 of Figure 8, let it be assumed that the window is in its closed position (Figure 4 or 8). In this position, the-power arm 32 and the operating bar .2 lie one above the other in positions substantially parallel to each other and to the window pane 16 or 87. To open the window 12 or 82 by swinging it outward around its hinges 13 or 83, the user rotates the hand crank 28 and gear 25 in such a direction as to swing power arm 32 in an arcuate path and counterclockwise direction (Figure 2) by reason of the meshing engagement of the gear 25 with the quadrant gear teeth 30. As the pivot pin 36 onthe outer end of the power arm 32 swings in an arcuate counterclockwise path, it causes the slider 38 to slide inwardly along the bar 42 while pivoting relatively to the power arm 32.

This sliding engagement between the power arm 32 and the operating'bar 42by the intermediate action of the slider 38 causes the outer end of the operating bar 42 to swing in an arcuate counterclockwise path around its pivot pin 46 (Figure 2), thereby causing the second slider 61"to moveto the left along the guide rod 65, swinging the window 12 or 82 outward around its hinges 13 or 83. As this occurs, the flexible operating bar 42 flexes or bends (Figure 3) to adapt the mechanism to the changing position of the window 12 or 82 relatively to the window frame 11 or 31. As this occurs, the slider 61 rocks on the guide rod 65 as it slides along the latter.

. The window is closed by rotating the crank 28 in the opposite direction, reversing the foregoing operation. The action of the slider 38 upon the operating bar 42 gives a camming effect upon the window 12 or 82 relatively to the window frame 11 or 81, pulling these members or structures snugly into engagement with one another ,against the weatherstrips (not shown) normally placed therebetween for sealing the cracks existing thereat.

What we claim is:

A window operating device for mounting upon the I the window sill, an elongated window operating bar of flexible material having its inner end pivotally mounted on' said pivot element, a first slider pivotally connected to the outer end of said operating bar and slidably engaging said guide member for travel to and fro therealong, a second slider having a slot therethrough slidably engaging said operating bar for travel back and forth therealong, a power arm having its inner end adapted to be pivotally mounted on the Window sill in spaced relationship to said pivot element and having its outer end pivotally connected to said second slider, and mechanism operatively connected to said power arm for swinging said power arm around its pivot in a direction outwardly from said window sill toward said sash.

Hartman Feb. 12,

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