US1760227A - Friction shoe for window sashes - Google Patents

Description

y -7, 1930. 4. P. APPLEBY 1,760,227

FRICTION SHOE FOR WINDOWSASHES Filed March 21, 1927 93 V y 29 1 J2 27 7 Z flHA ELi 2.5

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War/28y Patented May 27, 1930 UNITED STATES PATENT OFFICE JAMES P. APPLEBY, OF LOS ANGELES, CALIFORNIA, ASSIGNOR TO FRANK GRAVES SASH, DOOR AND MILL COMPANY, OF LOS ANGELES, CALIFORNIA, A CORPORATION 4 OF CALIFORNIA FRICTION SHOE FOR winnow SASHES Application filed March 21, 1927. Serial No. 176,894.

"entitled Sash balances, filed Mar. 21, 1927,

Serial No. 17 6,893, I have set forth a situa tion wherein a spring-actuated drum is aplied'to one side, only, of a sash. The tendency of this single balance is to rotate the sash about a horizontal axis, forcing the upper corner of the sash, at the side opposite that of balance-application, into binding engagement with the, frame. In that application, I have shown, and broadly claimed, means for counteracting this rotational tendency, thus insuring that the sash be held squarely within the frame andthercfore free to slide smoothly. The device shown in the present application is one which is adapted to function similarly to the counteracting device disclosed in said co-pending application, though it has several features which render it more capableof advantageous use than the previously disclosed device.

In the above situation, the device of my.

invention not only counteracts the rotational tendency of the sash, but also serves as, a

frictional retard or drag tending to hold the sash in adjusted position.

In the event it is undesirable 01' not feasible to use a spring actuated balance on either side of the sash, 1 may utilize two of the devicpls here disclosed, one at each side of the sas i The device is adapted-to, be applied to a corner of the sash, preferably, thou h not necessarily, to an upper corner, an is so fashioned and positioned on the sashthat it may be adjusted to vary the effective tension of its spring member without dismounting the sash, a feature of obvious advantage.

The device may be generally described as being made up of an L-sh'aped member, a flat, bowed spring being applied to one of the arms and the other arm having means -where-' by it may be anchored to the sash. However, the details of construction and method of application may be described ,to better advantage in the following specification, reference being had to the accompanying drawings, in i which:

Fig. 1 is a perspective view of apreferred embodiment of my invention;

Fig. 2 is an illustration of a sash and frame, showing my device applied thereto in a given situation Fig. 3 is a view similar to Fig. 2, but showing the device applied in a different situation;

F 1,224 is an enlarge device in applied position; P 1 Fig. 5 is a top, plan view of Fig. 4;

Fig. 6 is an enlarged fragmentary section on line 6-6 of Fig. 1; and

Fig. 7 is a detached perspective view-of the pressure spring or shoe. a n

In Fig. 1 I have shown an L-shaped body or supporting member 10, the relatively short arm 11 being bent at-a substantially .right- 7 angle to the relatively long arm 12. The

supporting member is preferably made of comparatively stiff metal, and is of a nature to be fashioned quickly and easily by punchpress operations. 7

Amchored to the lower end of arm 12 is a friction or pressure shoe 13 which is in the form of a flat, centrally bowed spring, the relatively straightend portions 15 and 16 contacting with the outer face 17 of arm 12. While'any suitable type of anchoring connection may be utilized for holding the spring [I to the supporting'member, I have illustrated a preferred one. For this purpose I ,pun'ch end 16 in a manner to provide an aperture 18 of polygonal outline. A plurality of lips 19 are pressed outwardly .from arm 12, said lips being passed through aperture 18 and then turned over upon the upper face of a spring 13.. In .pressing-out'lips 20 an aperture 18 of polygonal outline is left in arm' 12, and since the lips engage the defining walls of polygonal aperture 18 they prevent 100 d section showing my and spring. Of course, the turned-over lip portions 20 hold the spring and supporting member against separative displacement.

End 15 is adapted toride on face 17 during flexure of the spring, the arm .12 thus providing a wear-plate and assuring smooth spring action.

The under face of arm 11 preferably is provided with .positioning means 21. In the preferred embodiment of the invention, this means is shown to be a hollow stud which is elongated in the direction of the length of arm 11. Looking at it from another angle, arm 11 may be considered as being provided with an elongated aperture 22 about which extends from the under face of arm 11 a dependent, marginal flange 23. Preferably, flange 23 is formed by pressing down the stock of arm 11 during the punching of apertui'e 22, the flange inclining inwardly toward the axis of the aperture in order'to give the stud tapered characteristics so it may more readily be driven into a window sash in the manner to be described later. The described formation of flange 23 also provides a'c'omparatively sharp edge 24 which further facilitates the entry of the stud to the sash. i The inclination of the flange also gives flaring characteristics to Way 25 defined by the flange, the upper, wider part ofthe 'way being of suflicient width to take a nail head, while the lower, relatively narrow portion of the way is preferably of a width just to take tween frame and sash is greatly exaggerated nicely theshank of a nail or screw of given diameter.

In Fig; 2 Ihave indicated vertically extending window'frame members 26 and 27 between which, is adapted to slide sash. S. It may be here noted that in this'figure', as well as in Figs. 3, 4 and'5, the clearance bein order that the structural details of my shoe may be made more clear. Frame member 27 carries a spring actuated balance generally designated at 28, connection between said balance and sash S being made in the usual manner through band or tape 29'. Balance 28 has a natural tendency to rotate sash S about a horizontal axis in a counter clockwise direction, as viewed in Fig. 2, since the free end of the band is applied at 30- to the lower, right-hand corner of the-sash. My

improved shoe, generally designated at 9, is therefore introduced between frame member 26 and the upper, left-hand corner 31, of sash S, sald corner occurring at the junction of horizontal sash member 32 and vertical sash member 33.

Body member 10 is applied to corner'31 in such a manner that arm 12 lies adjacentedge 34 of member 33, and arm 11 engages the upper edge 35 of member 32. It is not necessary that the entire extent of arm 12 engage face 34,- though the lower end of the arm engages said face when thespring is ten sioncd between the sash and the face 36 of member 26 whichv opposes face 34. With the gap or clearance G between member 26 and 33 of given extent and with balance 28 exerting a in engagement with face 34 during this movement.

With the support member thus adj ustedto bring spring 13' into predetermined pressural contact with face 36, arm 12 is driven down in a manner to sink or embed stud 21 in member 32 (Fig. 4), the stud thus'serving to grip the sash in a manner tending to hold the support member from displacement, the elongated characteristic of the stud'holding said member from rotating out of position. In order to provide a more positive anchorage for the support member, a nail or screw N may be driven through the hollowv stud into the 'sa'sln The flaring characteristics of way 22 allow the head of screw or nail to be driven flush or slightly below the upper face of arm head when it is in the nature of a nail) the support member may then be lifted clear of sash member 32, and the support member swung to a new position. It then remains only to press Stud 21, in its new position, back into the sash and drive the nail home again. This may all be done without dismounting the sash from its frame, a feature of obvious advantage.

When it is desired that the lower end of the support be securely anchored to the sash, a nail or similar holding device N may be passed through aperture 18 and into sash member 33, but this precaution is not ordinarily necessary and can only be taken when the sash is dismounted from the frame.

' In Fig. 3 sash S is mounted between frame members 26 and 27' in the manner describedin connection with the sash of Fig. 2. Here, however, in place of balance 28, is shown a. friction shoe 9 similar to shoe 9 and applied to the sash in the same manner. Of course, it is also possible to apply the-shoes to the lower corners of the sash, and such willordinarily be done when the sash'is of considerable vertical extent, or when the clearance between frame and sash is great.

It will'be evident that shoes 9', 9 not only serve to hold the sashes squarely'within their frames, but also have such frictional contact I scopelof said claims.

with the frame members as to tend to hold the sashes in positions to which they have. been slid. In some situations, it is desirable to provide the frame members with inwardly facing sockets 39, into which springs 13. are

adapted to enter to hold the sash more posi-' tively in certain given positions of, adjust ment, though the springs will ride out of these sockets when slight manual efiort is applied to the sash to raise or lower it. It will be understood the drawings and description are to beconsideredmerely as illustrativ of and not restrictive on ;the broader claims appended hereto, for various changes in design, structure and arrangement may be made without departing from the spirit and I lclaimz A 4 1. In a device' of the character described,

an L-shaped member, a bowed spring anchored to one of the arms of the member,

. and an inwardly projecting stud on the other arm, said stud being elongated in the direction of the length ofsaid other arm.

2. In a device of the character described,

an L-shaped member, a bowed spring' anchored to one of the arms ,of the member,

the other arm of themember havin a slot extending longitudinally thereof, an a depending marginal flange aboutthe slot.

3'. In a deyice of the character described, an L-shaped member, a bowed spring anchored to oneof the arms of the member, the

other arm of the memberhaving a slot extending longitudinally thereof,' and a deending marginal flange about the sl0t,said an e inclining inwardly towards the axis of t e slot. x a

4. In a device of the-character described, .a supporting. member,-a bowed spring, and means for anchoring the spring'tothe memher, said means embodying a plurality of lips pressed outwardly from the member, th'rough a polygonal aperture -"n the spring and bent over the outer face 0 thespring, said li'ps engaging the defining walls cf the spring- I aperturel In witness that I claim the fore oing I have hereunto subscribed my name t is 21st glay of February, 1927.

' JAMES P. 'APPLEBr.

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