US2795016A

US2795016A - Balancing closure for windows, doors, partitions and the like

Info

Publication number: US2795016A
Application number: US224331A
Authority: US
Inventors: Lava Vittorio
Original assignee: Individual
Current assignee: Individual
Priority date: 1951-05-03
Filing date: 1951-05-03
Publication date: 1957-06-11
Anticipated expiration: 1974-06-11

Description

`une'll, 1957 V. LAVA BALANCING CLOSURE VFOR WINDOWS. DOORS, PARTITIONS AND THE LIKE 5 Sheets-Sheet 1 Filed May 3, 1951 INVENTOR: vnomo LAVA,

H/.5 AGEN 7i y V June 11, 1957 Y v. LAVA 2,795,016

BALANCING CLOSURE FOR WINDOWS. DOORS, PARTITIONS AND THE LIKE Filed May 3, 1951 5 Sheets-Sheet 2 INVENTUR.-

vl vnToRxo LAVA,

JuneY ll, 1957 v LAVA A 2,795,015

BALANOING OLOSURE FOR WINDOWS. DOORS, PARTITIONS AND TRE LIKE:

Filed may 3, 1951 5 sheets-sheet :s

JNVENTOIO 'VITTORIO LAVA,

Tr-111,Y

' -MWM HIS HSE/VZ June 11, 1957 v. LAVA 2,795,016

l BALANCING CLOSURE FOR WINDOWS, DOORS, PARTITIONS AND THEI LIKE Filed nay 3, 1951 A A s sheets-sheet 4 cvToooR INVENTOR.- VITTO '2l O LAVA,

/ZwL/l M HIS AGE/V7.'

l June 11, 1957 V. LAVA 2,795,016

BALANCING CLOSURE. FOR WINDOWS. DOORS, PARTITIONS AND THE LIKE Filed May 5, 1951 v 1em-A 5 Sheets-Sheet 5 l INVENTR: Avwcnzlo LAVA,

BY i I,

United States Patent BALANCING CLOSURE FOR WINDOWS, DOORS, PARTITIONS AND THE LIKE Vittorio Lava, Milan, Italy Application May 3, 1951, Serial No. 224,331

6 Claims. (Cl. 20-42) The present invention relates to a balancing closure for windows, doors, partitions and the like.

The balancing closure, which possesses technical and economical advantages over the common sash models, is known to be subject to inconveniences. In particular, in the type-s known up to now, i-t is not possible to secure an etective air and water tightness `along the whole of the perimeter of the frame, inasmuch as, in cor-respondence with the axis of oscillation, where the opposite joints converge, the pivot of rota-tion interrupts the continuity of the joints themselves. In the known types, moreover, it is not possible to realize an adjustable opening together with a complete inversion of -the movable frame and there is no possibility of entirely drawing said movable 4frame into the place Ifor normal maintenance operations: nor 'is there a possibility of withdrawing the movable -from the Ifixed frame by simple operations.

The object of the present invention is a balancing closure that eliminates all the inconveniences above cited and that presents besides particular advantages that will better lbe evident in the course of the description.

The `balancing closure according to the invention comprises a fixed as well as a movable frame, so connected as to permit a movement of manual rotation and of manual sliding of the latter in regard to the former, so that the movable tra-me may be rotated for determining the desired opening of the closure, may be upturned and may be caused to slide until it re-enters entirely the room. The connection between the two frames is effected, according to the invention, by means capable of rotating with respect to one frame and to permit a sliding of the other one, for instance by a pair of brackets or supports pivoted on the fixed frame, and upon which the movable frame may be iixed so as to allow it to slide when s-o desired, fand also of being entirely withdrawn 'by a simple operation. f

According to the invention the pivots around hich iseifecte-d the rotation of the connecting means above 'mentioned and therefore also of the movable frame, determine an axis of rotation parallel to the planes of the closure but external to the thickness :of the closure. This is designed to provide a connection without any gap of continuity between the joints above the axis of rotation 4 and those below it. There is provided, in correspondence with the inversion of the joints of the two frames along the sides having the pivots, a joint at right angles with .the longitudinal joints and parallel to the axis of rotation, in such a manner as to ensure the continuity of the `A preferred form of construction of a window closure les* j 2,795,0'116 Patented June 11, 1957 2 I according to the present invention is illustrated as an exemplifcation in the accompanying drawings,`to lwhich the following description relates. l

Fig. I1 is a schematic longitudinal sectional view showing the closure in two different positions. y

IFig.v 2 is a sectional View, similar to Fig. 1, but showing twofurther positions.

F ig. 3 is a sectional view, similar to the preceding views, but .showing a further position.

Fig. 4 is `a fragmentary perspective view of the complete closure.

IFig. 5 is a fragmentary perspective View, partly'in section, that shows a detail of the frames with the rain water drip canal-s.

Fig. 6 isa schematic perspective view showing a detail of the .frames in connection with the balance pivot.

Fig. 7 is `a fragmentary sectional View, partly in elevation, taken on line' 7 7 of Fig. 5; and

Fig. 8 is afragmentary sectional View, showing the pivot sections with the friction device.

With reference'to said figures, :by A is indicated the fixed frame of the closure, while :by B and'C are indicated the two.` parts constituting the movable frame. Parts `B and C are hinged together along side 2 (perpendicularly to the sides carrying the pivots) so as lto permit the free opening of the frame, as indicate-d in Fig. 3 with au arrow Y,by an operator, for cleaning. It is understood that at least one of the other sides will have suitable means of connection of parts B and C (means not shown), such as locking means to keep the frame normally closed.v in Figs. l to 3 are `shown with full and "dotted lines some positions rthat the movable frame can '.take'with respect to thetixed one. The opening is effected, by kturning the upper section of the parts B and C towards 'Indoor" (Fig. 5), according to arrow X.

To` the side posts ofthe fixed frame A are connected by suitable meanspfor instance' by L-shaped sections 6, two co-axial pivot pins 4 for the rotation of the movable fra-me.' The axis of rotation or oscillation, as the figures clearly indicate, is external, viz. is outside of the thickness of the closure and in the case illustra-ted it is external in respect lwith the surface of the closure that lays inside the room.

Around each of the pivots 4 can rotate a means of connection with the movable frame, in the example shown, a :formed plate 8 with which cooperate, as will be said further on, the side posts of the movable frame B, C. Each pivot 4 carries a plate 8 and also discs 10 and plates 14. One of the discs 19 is elongated and forms a bracket connected to the stationary frame. The end of each pivot 14 is threaded and engages on the threaded end a bushing 16. By tightening the bushing 16, the friction adverse to the 'turning of the plate S is increased. Thus, the movable frame, which rests on 4the plates 8, may be held-in a desired position by adjustment of the members 16.

lPlates 14 in Pig. '8 are fixedv and pressed, through friction discs 10 (made forlinstance from asbestos, or other suitable material) against the oscillating part of the friction device, by means of a threaded bushing 16, one bushing 16 being mounted on the threaded end of each pivot pin 4, which makes it possible to adjust the friction device.

."lhe mechanism ,described admits of `establishing at will the inclination of the movable part of the closure lby the reason -that said lfriction counteract-s theV action 4of gravity that tends to cause the closure to turn in a sense opposite to that of arrow X. The 'particularlocation of the axis of oscillation with respect to lthe plane of ythe closure permits of yrealising a perfect continuity of the joints between movable vframe B C and,iiicedframe A. jT'he latter, namely thefxed `around hinges 2.

3 Y frame A for instance, has, in fact, in the section above the axis of the pivot a joint `18 turned towards the inside (that collaborates with joint 20 turned towards the outside `of the oscillating `parts B and C), while in the section below the axis .of pivotment the part A has a joint 22 turned towards the `outside (intended to` collaborate with joint 24 of `frame B andY C which. looks towards the inside). In correspondence with the inversion of the joints is provided a joint surface orthogonal to said joints, that is, parallel with the axis of rotation of the movable frame, extending substantially along the whole width of the twolongitudinal joints. Said .joint surface is indicated by 26 in the drawings and has, in the example illustrated, a special shape with a prismatic projection, with the sides inclined so as not hinder the relative movement of `frames B=C with relation to the xed frame A.

Plates 8, triangular in form, are not rigidly connected to part C of the movable frame but only rest against the internal surface of the posts of .said frame. The ends of the resting side of plate 8 have each a nose 28, while a second nose 30 is provided at its side. On the side posts of part C of the movable frame `,are fastened a pair of hooks 32 and a second pair of hooks 34 looking in opposite directions. Each hook 32 is open towards the joint 20, and each hook 34 open towards the joint 24. i The two hooks of each pair are displaced as compared to the hooks of the other pair on each side post so as to engage the plate 8 one with an end nose 28 andthe other one with a side nose 30.

Thus, it is evident that 'frame OB can slide by manual operation longitudinally relative to the support plates 8 and is pressed against the plates 8 yduring the sliding by gravity; the sliding may be carried out for a distance depending Vfrom the mutual distance between the paired hooks 32 and 34, and at the end of the movement the frame is caused to be rigidly bound to `said plates` 8 by means of either one of thepairs of hooks. It is evident that the connection might be .realized with different devices `and operate for several fixed positions. When the frame is in an intermediary position between the hooks, it may be lifted off the plates 8 and ifA desired be redeposited thereon near one end of the frame, as shown in Fig. 3.

'By observing Figs. l and 2 the working is obvious. In the former figure the frame loads plate 8 through the pairs ofhooks 32. However, when the frame is manually turnedthrough 180 with respect to -ts closed position (Fig. 2) it transfers its `weight on plate 8 through the hooks 34. This ,means that the lframe hasslid over plates 8 in the direction of arrow Z, this 'being permitted by its disengagement from the u-pper cross piece of fixed frame thatwould otherwise have hindered `the complete upturning towards the inside of the movable frame.

lt is possible, of course, to obtain the complete disengagement of the hooks from plates 8, and in this case` frame B=C` can slide over said plates until it 'comes back inside the room, as shown -by Fig. .3.

Parts B and C can be opened by the operator by turn ing, as said above, part Bin the direction of arrow Y In the position shown in Fig. 3, the part B would be held by hand. The panes can then be cleaned in the inside and normal operations of maintenance can be carriedout.

The upturning of the frame a-s in Fig. 2 permits .cleaning the outer pane.

Either of parts B and C is preferably equipped with a pane 36 so as to create a .tight chamber functioning .as a thermic and acoustic insulation.

In the interspace between the two panes 36 `can be disposed a blind, for instance a Venetian blind schematically indicated at 38 (Fig. l),that may `be:,opei"ated even when the closure is shut (by `strings not shown in the drawing). The 'blind' should preferably be of themetallic-strip type .ammore t 4 t that can be gathered -upwards or lowered and suitably oriented in order to have the desired screening etfect.

Panes 36 are fastened `by means of simple strips 40 having a rectangular section xed to parts B and C of the movable frame.

Lower external strip 40 (-Fig. 5) has internal grooves 42 corresponding to grooves v44 of part B of the frame. Said grooves create drip canals =for rain water that eventually should assemble on the outside lower edge of the movable frame (and especially when said edge is inclined towards the outside). Other grooves 46 on the lower edge of the fixed frame are intended to permit the discharge of the condensate that would eventually form in the interspace between the two panes.

I claim:

l. In a balancing closure, for windo'ws or the like, in combination, a xed frame, a movable frame rotatable relative to said fixed frame and being slidable between two opposite extreme positions perpendicularly of its axis of rotation, journalling means between said frames operable for guiding said movable frame in rotation relative to said iixed frame and including pivoting means for said movable frame for manual rotation thereof about its axis of rotation, and having surfaces for the manual sliding of said movable frame thereon, and disposed on the exterior of said fixed frame, said fixed frame comprising an upper section including a projection facing in one direction perpendicularly of said axis and a lower section having a projection facing in an opposite direction, said movable frame having extensions for abutment with said projections for sealing said fixed frame in the closed position throughout both sections and having external slide surfaces for engagement with the surface of said journalling means, said journalling means having portions rotatable about said pivot axis and including noses on said surfaces, and means connected to said movable frame and including on each of said slide surfaces groups of hooks spaced from each other operable to engage some of the noses of said rotatable portions in each of said extreme positions.

2. In a balancing closure, as claimed in claim l, said lower projection of said xed frame having at least one part of prismatic shape adjacent the pivoting means for the movable frame with its side inclined for clearing the path of movement of said movable frame,` said movable frame havingy matching prismatic recesses engaging said prismatic parts -of said xed frame when the balancing closure is shut.

3. In a balancing closure, as claimed in claim 1, said pivoting means comprising friction elements operable for frictionally engaging said rotatable portions at any desired position of inclination of said movable frame in its rotation relative to said xed frame.

4. In a balancing closure, as claimed in claim 3, together with, said pivoting means including a threaded bushing operable to `adjust the degree `of friction applied by `said elements.

5. Ina balancing closure, forV windows or the like, in combination, a fixed framepa movable frame being revoluble and shiftable relative to said fixed frame, a pivot mechanism journalled with relation to said fixed frame and including two oppositely disposed rotatable members each having a plane slide surface, opposite portions of said movable frame .abutting against said slide surfaces and being manually slidable thereon in opposite directions for the shifting of said movable frame relative to said fixed frame between opposite extreme shifting positions and being manually rotatable with said members for rotation of said movable frame relative to said fixed frame, and means apportioned between said slide surfaces and said portions of said movable frame operable for releasable latching interengagement between said movable frame and said rotatable members in each extreme shifting posia tion.

last named means including two pairs of hooks secured to said movable frame for each pivot, the hooks of each pair facing in one direction, opposite to that of the other pair, and projections on said pivot mechanism operable for engaging a pair of hooks in each extreme position.

References Cited in the le of this patent UNITED STATES PATENTS 6 Dietz Nov. 14, 1933 Wernple Aug. 3, 1937 Persson Jan. 9, 1940 Lindemann Feb. 25, 1941 Lidin Apr. 9, 1946 FOREIGN PATENTS Netherlands 1940 Sweden 1943 Great Britain 1944