US1951059A

US1951059A - Sash pulley

Info

Publication number: US1951059A
Application number: US588947A
Authority: US
Inventors: Luton John
Original assignee: Individual
Current assignee: Individual
Priority date: 1932-01-26
Filing date: 1932-01-26
Publication date: 1934-03-13
Anticipated expiration: 1951-03-13

Description

J. LUTON SASH PULLEY March 13, 1934.

Filed Jan. 25, 1932 NVENTOR. T0/1 n L L( ton,

ATT N Y.

Sign lll-ll I llllll/ll/l//fM p 40 the window 1.

Patented Mar. 13, 1934 UNIT STATES PATENT* orio SASH PULLEY John Luton, Cleveland Heights, Ohio application January 26, 1932, Serial No. 588,947

6 Claims.

This invention relates to novel constructions and arrangements of pulley systems for supporting sash weights for use with windows.

It is an object of this invention to provide a system of pulleys adapted for use either with single windows or with multiple windows.

Another object of the invention is to provide such a system of pulleys as is adaptable for use with one or a plurality of windows and which is 19 suiliciently flexible in its construction that it will adapt itself in varying conditions of window construction.

Still another object of the invention is to provde a system of pulleys separable into two parts,

one ol which may he used as a standard con struction of pulley system with single and double windows, and the other part oi the system being attachable to the standard part in order to create a multiple system adapted ior triple or r() multiple windows.

Other objects and advantages of the invention will appear `in the following description taken in connection with the accompanying drawing in which:

Fig. 1 is a View in elevation, broken away, showing the installation of the pulley systems of this invention;

Fig. 2 is a detail View of the pulley system;

Fig. 3 is a cross-sectional view taken on the line 3--3 of Fig. 2;

Fig. 4 is a cross-sectional View taken on line 4-4 of Fig. 3.

Referring to Fig. 1, I have shown at l windows adapted to slide in a window casing 2 which provided with a space 3 adapted to receive window sash weights 4 and 5. The said Window sash weights 5 are suspended from chains 6 which pass over pulleys 'i of standard construction and which. are aixed as is indicated at 9 and 10 to An auxiliary pulley 11 is provided over which one ci the chains e is trained.

The construction thus far described is oi a conventional type adapted for use with single and/or double windows. Where there are three or more windows in a row in a window casing, it becomes necessary to provide sash weights for the central windows, and since it is often inconvenient to place them in the spaces between Windows, it is often desirable to place them at the end of the window casing in such space as is indicated at 3 in 1 of the drawing. Aecordingly, an auxiliary pulley 13 is provided over lwhich the chain connected to the sash weight 4 is trained, the chain 14 running over the pulley A 15 and being connected to the window 1 as indicated at 16. The pulley 15 is of conventional construction.

Said auxiliary pulley 13`is usually arranged in an inaccessible place in the window casing and accordingly cannot be secured down by screws as 5G is done with other pulleys. Accordingly, in the past it has been customary to make the pulley 13 an integral part of the pulley l so that the securing oi the pulley 'i in place serves to secure the pulley 13V in place at the same time. 'ii-low 65 ever, this necessitates the use of two pulley constructions which involves some duplication. That is, when the pulley 'l and 13 are made integral, it is necessary in the interests of economy to provide a separate unit of the pulley 7 70 to be used in the single and double window constructions. This involves the duplication of the pulley 7 in the two pulley systems.

According to my invention, the pulley 13 is made separable from the pulley 7 so that the 75 pulley 7 is made as a standard construction for windows of any number. Thus, the pulley 'i may be used alone for the double window construction and, when necessary, the pulley 13 can be combined with the pulley 7 in order to adapt the 80 system of pulleys for use with triple or more windows.

In order that the pulleys 7 and 13 may be conveniently united, the pulley 7 is provided with a curved integral extension 1'7 formed to 85 provide a channel 18 in which the tongue 19 of the frame of pulley 13 may ride. Said frame is also provided with a depending ilange 20 adapted to rest upon the frame of the window casing when the pulley 13 is in operative posi- 9o tion. The nature of the connection between the pulley 7 and the pulley 13, formed by the curved channel 18 and tongue 19, permits the pulley 13 to turn about an axis and adjust itself to the irregularities of the Window casing upon which the flange bottom 2Q may rest. Thus a self-adjusting connection is afforded between the pulleys 7 and 13 which renders it easy to insert the pulley 13 into place and, when in place, to arrange itself, without further at- 100 tention in operating position, the pulley 7 when fastened to said casing serving through the inter-connection between the pulleys 7 and 13 to secure the pulley 13 in place. The nature oi the connection between pulleys '7 and 13 is '105 such that they may be readily assembled without the use of additional parts or tools. Thus, the pulley '7 may be made as a standard part for use with all kinds of windows and when it is desired to use the arrangement oi window 4110 sash weights shown in Fig. 1, the pulley 13 is attached to the pulley 7 as shown diagrammatically in Fig. 2, by the workman with the greatest of facility. Said workman when desiring to use the pulley 7 in a triple or more multiple window arrangement, has only to unite the pulley 13 to the pulley 'l as shown in Fig. 2 by means of the channel of the pulley frame '7 and the tongue vof the pulley Aframe 13 to form an integral member, which member may be then grasped by the workman at the thin handle portion 21 to project its tip portion 22 at an approximate right angle to the top 423 of the window casing 2 and through an elongated perforation 24 thereof and to rotate and project the same over said casing to a position such as is l.shown by the member `13 `in Fig. l. The workman by fastening the screw 12 has now secured the said integral member in its operative position.

It will be noted that the pulley 13 represents the only additional part necessary in order to provide pulley systems for multiple window constructions having 'the sash weights at the end of 'the window casing', which results in a reduced manufacturing cost and at the same time aiord's a better type of pulley unit for such use.

Alaing described, by way Yoi illustration, a particular embodiment of my invention, upon which many modifications may be made without departing from the spirit and scope of the invention what I desire to claim as my invention is as follows:

l. In a sash chain pulley construction a Iirst and a second pulley frame, a pulley rotatably supported 'in each frame, the frames being connected 'together by sliding connection means to permit adjustment of the position of the second 'frame relative to the vfirst 'frame on an arcuate path of movement concave toward the first frame pulley axis.

2. In a 'sash vchain pulley construction a iirst and a second pulley frame, a pulley rotatably supported in each frame, the frames being connected 'together by sliding connection means to permit adjustment of the position of the second frame relative to the iirst frame, the rst iframe having a chain guarddisposed adjacent to 'and above 'its .pulley and the second frame pulley disposed to receive thereon ka pulley chain disposed 'outwardly 'of the said guard.

3. In a sash chain pulley construction, a pulley frame having means to secure it to a window frame and rotatably supporting the chain pulley, a portion of the frame formed to make arcuate sliding connection with a mating auxiliary pulley frame to permit relative position adjustment of the auxiliary frame on an arcuate path concave toward the pulley axis.

4. In a sash chain pulley construction, a pulley ir-ame rotatably supporting a chain pulley, a portion of the frame formed to make arcuate sliding connection with a supporting main pulley frame to permit relative position adjust- Anient of the frame relative to the main frame on an arcuate path convex toward the pulley axis.

5. In a sash chain pulley construction, a first and a second pulley frame, a pulley rotatably supported in each frame, the frames being connected together by connection means to permit ver-tical -adjustment of the position of the second frame relative to the first frame, the second frame pulley being disposed to receive thereon a pulley chain disposed above said rst frame pulley and stop means associated with said connection means to -limit downward movement of the second frame whereby the upper portion of the second frame pulley is maintained above the upper portion of the first frame and pulley in the zone of a pulley chain received by said second frame pulley.

6. In a sash chain pulley construction, a iirst and a second pulley frame, a pulley rotatably supported in each vframe, the frames being connected together by connection mea-ns to permit vertical vadjustment of the second frame relative to the first frame, the vfirst frame having a chain guard disposed adjacent to and above its pulley, the second frame pulley being disposed to receive thereon a pulleyl chain disposed outwardly of said guard, and stop means associated with said connection means to limit downward movement of the second frame relative to the iirst frame whereby the upper portion of the second frame pulley is maintained above the upper portion of the iirst frame pulley and chain guard in the zone of a pulley chai-n received by said second frame pulley.

JOHN LUTON.