US2621063A

US2621063A - Combined operator and lock for windows and the like

Info

Publication number: US2621063A
Application number: US88806A
Authority: US
Inventors: Langseth Andrew
Original assignee: Individual
Current assignee: Individual
Priority date: 1949-04-21
Filing date: 1949-04-21
Publication date: 1952-12-09
Anticipated expiration: 1969-12-09

Description

Dec. 9, 1952 LANGSETH 2,621,063

COMBINED OPERATOR AND LOCK FOR WINDOWS AND THE LIKE.

Filed April 21, 1949 INVENTOR. fi/vaesw 4mm 66? MLM, 4M

ATTOENEV5 Patented Dec. 9, 1952 UNITED STATES ATENT OFFICE COMBINED OPERATOR AND LOilK FOR WINDOWS AND THE LIKE 8 Claims.

This invention relates to a combined operator and lock for windows and the like.

It is a primary object of the invention to provide an operator which is both reciprocable and rotatable, the reciprocating movement being communicated to an operated part for the adjustment thereof, and the rotative movement being used to lock and unlock the operator, so that full control, both for locking and unlocking, and adjustment, is achieved through the use of one hand.

Other objects of the invention can best be described in connection with the following disclosure of the details thereof.

In the drawings:

Fig. 1 shows the operator in plan as applied to a Window sash, the sash and its casing being shown in section.

Fig. 2 is an enlarged detail view of the operator, portions thereof, and portions of the lock, being shown in longitudinal horizontal section.

Fig. 3 is an enlarged detail view taken in transverse section on the line 33 of Fig. 2.

Fig. 4 is an enlarged detail view taken in transverse section on the line 4--4 of Fig. 2.

Fig. 5 is a detail view in perspective showing in mutually separated relationship the component parts of the device.

While my invention is applicable to many devices other than the adjustment of window sash, it has particular application to window sash adjustment and will be disclosed as a window sash adjuster, by way of exempliflcation.

The sash 1 is hinged at 8 to its frame 9. It is desirable that the sash be adjustable almost instantly between its open and closed positions, being movable with more freedom than is possible with any crank arrangement, and yet lockable in any position throughout its range of adjustment, preferably by manipulation of the same handle used in the adjustment operation, so that but one hand of the person manipulating the device can perform both the adjusting and the locking functions.

The bracket it is connected with the sash E. To it is pivoted by means of the vertical bolt H a swivel fitting I2 which has a socket at 13 in which the turned end IA of bar section I5 is rotatable, being anchored in the socket by a cross pin l6 which engages a channel ll turned in the cylindrical portion is of the bar. Any other swivelling arrangement would be appropriate at this point.

The operating bar comprises a section it having terminal clevis at I9 connected by pin 20 2 with a tongue 2| in the end of section it. Thus, the

sections

15 and 13, which are desirably alike in cross section, are in pivotal connection with each other.

Both of the parts [5 and it have like noncircular contours in transverse cross section. Desirably, each is nearly square in transverse cross section, being completely square except for the fact that each of its corners 22 is slightly rounded as shown in Figs. 3 and 4.

Connected to some portion of the window frame, either the sill, or the side, or the top of the frame, is a bracket 23 to which is pivoted the cylinder 25 which has an integral post portion 24 rotatably mounted in bracket 23 and secured by one or more nuts 25. Rotatably mounted centrally of the cylinder is a collar 2? having an opening at 28 which is square, or of other non-circular contour to fit the cross section of the operating bar l8 so that rotation of the bar will necessarily be communicated to the collar 2'1. The opening 28 Will be noted in Fig. 4 to be slightly ofi center with respect to the axis of the cylinder 25. While the exact dimensions are not critical, I have found it appropriate to have the center of the opening 23 on a center line 29 which is .015 inch laterally offset from the center line of the cylinder or sleeve :25.

Fixed in the ends of the cylinder or barrel 25 are one or more stationary collars, two being shown at 3!, 32. These may be soldered or Welded or merely secured by pressed fit within the barrel to be non-rotatable therein and to confine the rotatable collar Z'l against axial displacement. Each fixed collar or collars 3! and 32 is provided with a bore 33 which is desirably cylindrical. If two collars are used, they may be identical, and the bores are aligned on a center in the fixed plane indicated at iii in Fig. 3. When the rotatable collar 21 is in the position shown in Fig. 4, its plane 29 will register with the fixed plane 34.

When the two sections I 5 and [8 of the operating bar are aligned as shown in Figs. 2 and 5, and in full lines in Fig. 1, they will move freely in an axial direction through the registering cylindrical holes 33 of collars 3| and 32 and the intervening square hole 28 of the rotatable collar 21, so long as the rotatable collar is in the position shown in Fig. t. Thus, the handle 35 at the end of the bar may be used to draw it in or out and thereby to close or open the sash *1. With the sash fully closed, the end of the bar would project into the living quarters but for the fact that the hinged joint provided by pintle 3 20 between the sections and 18 of the bar permits the bar section [8 to be folded to overlie the window sill as indicated in dotted lines in Fig. 1.

In any desired position of the bar to which it may be adjusted in the opening or closing of the sash, the handle 35 may be used to rotate the bar upon its axis, carrying with it the collar 21 to which it is splined. However, as the bar rotates, the polygonally cross sectioned opening 28 in the rotatable collar 21 would, but for the strength of bar I8, tend to move out of axial registry with the round openings 33 in the fixed collars 3| and 32. Since the strength of the bar and its close fit in the openings provided in the several collars holds the opening 8 in substantial alignment with openings 33, the efiect of the rotation is to tend to move the rotatable collar 21 eccentrically within its cylindrical bearing in the barrel 25. If the ofiset of the openings from the axis of the barrel were substantial, the bar would not rotate at all, Since the offset is minute, there will be, despite the close bearingfit of the parts, a considerable angular rotation, in the course of which the bar becomes tightly wedged in the stationary collar or collars so it cannot move further in the direction of rotation, nor can it move axially. The parts are, thereupon, completely locked, and the sash or other operate-d part will be held securely in its adjusted position. Yet, the slightest pressure in a converse direction of rotation will free the wedging action and leave the bar completelyfree for instant sliding adjustment to any desired position, such adjustment being efiected with the same hand with which the unlocking isachieved.

Regardless of the polygonal shape of the bar in cross section, the rounding of its corners provides for it a substantially cylindrical bearing surface fitting the cylindrical openings 33 in the stationary collars, and a non-circular bearing surface which is complementary to non-circular bearing surfaces of openin 28 in the rotatable collar, any splined connection bein suitable.

Iclaim:

1. An adjusting and locking device operable with one hand, said device comprising a reciprocable and rotatable operating bar provided with an operating handle by which it may be moved longitudinally and rotatably, at least one fixed bearing member providing a guide surface closely fitted to said bar and within which said bar is guided for reciprocation and rotation upon a redetermined axis, and a complementary collar in splined connection with the bar to rotate therewith, said collar having a bearing in which it is rotatable upon an axis slightly ofiset from the axis of rotation of the bar, said fixed bearing member and said collar bearing having a common mounting in which reactive forces are devel oped whereby rotation of the bar will wedge the bar against longitudinal reciprocation through said member.

2. A device of the character described-comprising a pair of bearin members relatively fixed against rotation and against reciprocation, said members having aligned bores and being mutually spaced, a bar closely fitted within the bores and reciprocable through said members and rotatable in the bores on an axis defined by the bores, a collar splined to said bar and confined between said members, the splined connection of the collar with the bar permitting independent longitudinal movement of the bar while constraining the collar and bar to rotate unitarily;

and a bearing element in which said collar is rotatable, said bearing element and collar having mutually contacting bearing surfaces slightly eccentric respecting the axis upon which the bar is longitudinally reciprocable and rotatable, whereby rotation of the bar will tend to shift the bar axis thereby binding the bar against the bore surfaces of said fixed members and reactive force will tend to cause said eccentric surfaces to lock thereby wedging the bar against reciprocation, the opening in the collar being, in another rotative position of the collar and bar, substantially aligned with the openings of said bearing members, whereby the bar is reely reciprocable through said members.

3. The device of claim 2 in which the bar comprises hingedly connected sections, both having cross section contour adapted to pass the openings of said members, and a pintle connecting said sections and disposed within said contour.

4. The device of claim 2 in which said bar'has a swivelled terminal connection for transmitting its longitudinal reciprocation while accommodatll'lg its rotation on its axis for locking and unlocking the-bar.

5. A device of the character described comprising the combination with a mounting barrel and a collar rotatable therein and having a polygonal opening having an axis slightly offset from the axis of rotation of the collar, an operating 'bar of polygonal cross section fitting the opening ln the collar, said bar being rotatable with the collar and longitudinally reciprocable through said opening, and a pair ofmem-bers closing the ends of the barrel and provided with openings having axes slightly offset from the axis of rotation of said collar and in which openings the bar is rotatable and longitudinally reciprocable, the bar being closely fitted to said openings, th said members being substantially secured against rotation respecting the barrel, whereby rotation of the bar will tend to cause the collar only to rotate in the barrel and to displace the opening of the collar from registry with the openings of said members, thereby locking said collar within the barrel and locking saidbar against reciprocation respecting said members.

6. A device of the character described coniprising the combination with a pair of brackets, of an operating bar having a swivelled terminal fitting connected with one of the brackets, the other bracket providing a bore through which said bar extends, a collar rotatable in the bore and splined to said bar to partake of the rotative position of the bar while accommodating free axial movement of the bar, the axis of the opening in the collar being slightly offset from the axis of rotation of the collar in the barrel, and at least one member fixed to the barrel and having an opening in which said bar is closely confined for free rotative and axial movement, the axis of the opening through the member being ofi set from the axis of collar rotation, and the opening of the collar being adapted, in one rotative position of the collar, for alignment with the opening through the said member, rotation of the bar and collar disaligning the saidopenings and clamping the bar against reciprocation respecting the member.

7. The device of claim 6 in further combination with a second member opposed to the first member at the opposite end of the barrel, the collar being disposed between said members, and thesecond member having an opening similar in form andposition to theopening in thefirst' REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Number Name Date Hess Jan. 2, 1923 Morris Apr. 23, 1929 Belanger July 22, 1930 DeVries July 4, 1939 FOREIGN PATENTS Country Date Great Britain Mar. 12, 1898