US2651535A

US2651535A - Sash balance for double hung windows

Info

Publication number: US2651535A
Application number: US260500A
Authority: US
Inventors: Emil M Padjen
Original assignee: Individual
Current assignee: Individual
Priority date: 1951-12-07
Filing date: 1951-12-07
Publication date: 1953-09-08
Anticipated expiration: 1970-09-08

Description

Sept. 8, 1-953 E. M. PADJEN SASl-I BALANCE FOR DOUBLE HUNG wmnows Filed Dec. 7, 1951 v m m EM/L W P/QDJEN iatented Sept. 8 1 953 UNITED PATENT OFFICE SASHBALANCEFORDQUBIJE'HUNG WINDOWS Emil M. Padjen, Citrus Heights, Calif. ltnnl ica i m m er 7, 151., Ser No-260;

The present invention relates to a sash balance for double hung windows and it-consists in the combinations, constructions and arrangements of parts herein described and claimed.

Generally there is provided a balance for double hung windows which consists of a c'hannel plate freely mounted in each of the stiles of a window-sash and which channeled member is urged outwardly by apa'ir of cams each of-which is provided with a spring t'ensioningdevice having adjustable means for controlling the same. The construction is-such that it willpermit open-.- ing and closing of windowswith ease regardless of the difference in size and :weight of the window and regardless of expansion and contraction due to weather changes.- A window sash equipped with the present invention will not rattle .or require weather stripping nor will it jam when being raised or lowered.

his accordingly an object of the invention to provide a novel adjustable :sash balance for double hung windows.

Another object of the invention is the provision, in a device of the character-set forth, of a novel spring actuated cam forming a part of the invention.

A further object of the invention .is the pro.- vision .ofnovel means for adjusting the tension of a spring forming apart of the invention which spring is adapted to. urge outwardly the aforesaid channel member.

Another object of the invention is to provide a device of the character set forth which is simple in construction, inexpensive to manufacture and yet effective and efficient in use.

Other and further objects of the'invention will become apparent from a reading of the following specification taken in conjunction with the drawing, in which:

Figure 1 is an exploded perspective view of an embodiment of the invention,

Figure 2 is a front elevational view of a bracket and associated mechanisms forming a part of the invention,

Figure 3 is a sectional View taken along line 33 of Figure 2,

Figure 4 is a sectional view taken along line 44 of Figure 2,

Figure 5 is a fragmentary sectional view taken along line 5--5 of Figure 1,

Figure 6 is a perspective view of a cam forming a part of the invention,

Figure 7 is a perspective view of a lifting arm forming a part of the invention, and

Figure 8 is a fragmentary plan view of a win- '3 Glaims. (Cl. 292-44) 2 dow sash and window jam illustrating an 'embodiment of the invention mounted therein.

'Referring more particularly to the drawing, there is shown therein a window sash generally indicated at 1 t0 and provided with stiles H and having a pair of vertically extending spaced grooves 12 cut'therein, the faces between said grooves I2 being cut away at the upper and lower portions thereof to form pockets l3 and leaving a centrally disposed block l4 between the pockets 13.

r In each of the pockets [3 there is mounted a bracket generally indicated at I5 and having a rear wall l6 and a pair of outwardlyextending side walls I! which lie in spaced parallel relation to the sides of the pockets I 3 and, in effect, form continuations of the grooves [2. The bracket i5 is provided with a cover plate l8 which extends sufiiciently outwardly to embrace the upper or lower end of the sash 10, as the case may be, it being understood that the devices in the upper pocket l3 and .in the lower pocket 13 are identical but inverted.

A screw I9 extends through the plate It and is provided with ahead '20 which is countersunk in the plate I8. The screw l9 also extends through a horizontal arm 2! which has integrally formed therewith a vertically dependent plate 22 .at whose lower end is integrally formed an outwardly and slightly downwardly extending arm'2j3. The elements 2 L22 and 213 will together he referred to as a pull arm generally "designated at 24, A nut 2 5,:is threaded upon the lower portion of the screw l9 and a compression spring ZS-surrounds the screw 19 and has its upper end in abutment with the underside of the armQl and its lower end in abutment with the upper side of the nut 25.

"The channel member generally indicated at 26a is provided with an outer wall 27 and a pair of inwardly extending side walls 28 which latter are adapted to extend into the grooves 12 and between the members H and the sides of the recesses l3.

A pin 29 interconnects the sides ll of the bracket in spaced relation to the rear wall l6 thereof and a pin 30 likewise interconnects the walls I! adjacent the forward edges thereof and immediately above the arm 23.

A cam member is generally indicated at 3| and is provided with a collar 32 which surrounds the pin 30 and with an integrally formed forward lip 33 and an integrally formed rear lip 34. The lip 33 bears against the inner side of the wall 21 of the channel member 26a while the rear lip 34 bears against the upper side of the wall 23 of the pull arm 24.

In operation, it will be apparent that the cams 3| act to urge the channel member 25a outwardly into contact with a window jamb 35 with which the sash I is associated and that the pressure exerted by the lips 33 against the channel member 26a, is regulated by turning the screw 19 to thus regulate the tension of the spring 26 against the underside of the arm 2| and, accordingly the pressure against the underside of the lip 34 thus increasing or decreasing the pressure exerted by the lips 33. Since the heads 20 of the screws l9 lie within the plates [8, they are accessible at all times and the tension referred to may be regulated without disassembling the apparatus. It will also be apparent that when the jamb 35 and sash ll expand'or contract due to changes in temperature, that the side walls 28 of the channel member 26a will at all times be presented in the path of any passage of air between such sash and jamb which might otherwise occur. It will also be seen that the tension urging the channel members 26a outwardly will cause the sash to be held in any selected position while at the same time being sufliciently yieldable in character to permit the sash I0 to be raised and lowered without difliculty.

While but one form of the invention has been shown and described herein, it will be readily apparent to those skilled in the art that many minor modifications may be made without departing from the spirit of the invention or the scope of the appended claims.

What is claimed is:

l. A sash holder adapted to be mounted in a window stile having a pair of spaced longitudinally extending grooves formed in its outer face and a recess interconnecting said grooves at their upper ends and a like recess interconnecting said grooves at their lower ends, said holder comprising an elongated channel member having its sides positioned in said grooves, and spring means in each of said recesses for urging said channel member outwardly from said stile, said means including a cam pivotally mounted in each recess and having an outwardly extending portion and an integrally formed inwardly extending portion, said outward portions bearing against the bight portion of said channel member, a vertical plate in each of said recesses, an outwardly extending lower arm formed integrally with the lower end of said plate, a like arm formed integrally with the upper end of said plate, said lower arm bearing against the underside of the inwardly extending portion of the cam, and a spring for urging said upper arm in an upward direction.

2. A sash holder adapted to be mounted in a 4 window stile having a pair of spaced longitudinally extending grooves formed in its outer face and a recess interconnecting said grooves at their upper ends and a like recess interconnecting said grooves at their lower ends, said holder comprising an elongated channel member having its sides positioned in said grooves, and spring means in each of said recesses for urging said channel member outwardly from said stile, said means including a cam pivotally mounted in each recess and having an outwardly extending portion and an integrally formed inwardly extending portion, said outward portions bearing against the bight portion of said channel member, a vertical plate in each of said recesses, an outwardly extending lower arm formed integrally with the lower end of said plate, a like arm formed integrally with the upper end of said plate, said lowerarm bearing against the underside of the inwardly extending portion of the cam, a spring for urging said upper arm in an upward direction, and means for adjusting the tension of said spring.

3. A sash holder adapted to be mounted in a window stile having a pair of spaced longitudinally extending grooves formed in its outer face and a recess interconnecting said grooves at their upper ends and a like recess interconnecting said grooves at their lower ends, said holder comprising an elongated channel member having its sides positioned in said grooves, and spring means in each of said recesses for urging said channel member outwardly from said stile, said means including a cam pivotally mounted in each recess and having an outwardly extending portion and an integrally formed inwardly extending portion, said outward portions bearing against the bight portion of said channel member, a vertical plate in each of said recesses, an outwardly extending lower arm formed integrally with the lower end of said plate, a like arm formed integrally with the upper end of said plate, said lower arm bearing against the underside of the inwardly extending portion of the cam, a spring for urging said upper arm in an upward direction, and means for adjusting the tension of said spring, said means including a bolt extending vertically through said upper arm, a nut threaded upon the lower portion of the bolt, and a compression spring surrounding said bolt between said upper arm and said nut.

EMIL M. PADJEN.

References Cited in the file of this patent UNITED STATES PATENTS Number Name Date 1,364,721 Cook Jan. 4, 1921 2,017,299 Vikre Oct. 15, 1935