US1219467A - Fastener for sash-cords. - Google Patents

Description

J. D. C. KNAPP.

FASTENER FOR SASH CORDS'.

APPLICATION FILED JULY 1, 1916.

Patented Mar. 20, 1917.

Peas Ad-ro ETSRS cu. rnomurum. wnsumc rinrrnn sra'rns earner l anion.

JOHN D. c. KNAPP, or HonNsILvEnNEvAnA, AssIeNon TO JOHN C. BRoWN, or

DULUTH, MINNESOTA;

FASTENER non. SASH-CORDS.

Specification of Letters Patent.

Patented 'lliar. 2c, 1917.

Original application filed 0etober11, 1915, Serial No. 55,159. Divided and this application filed July 1,

To all whom it may concern:

3e it known that 1, JOHN D. KNnrr, a citizen of the United States, residing at Hornsilver, in the county of Esmeralda and State of Nevada, have invented certain new and useful Improvements in Fasteners for Sash-Cords, of which the following is a specification.

My invention relates to fasteners for sash cords and has for its object to provide a pronged button which can be forced into the opening in the edge of a window sash and which is provided with barbed members adapted to clasp the cord to secure the same to the sash without the use of knots. This application is a division of my co-pending application, Serial Number 55,159, filed October 11, 1915.

The full objects and advantages of my invention will appear in connection with the detailed description thereof and are particularly pointed out in the claims.

In the drawings, illustrating the application of my invention in one form,

Figure 1 is a longitudinal sectional elevational view of a portion of a window frame and sash showing the regular window cord and counterweight with my fastener applied thereto. Fig. 2 is a front elevational view of the fastener prior to the application of the same. Fig. 3 is aside elevational view of the cord with the fastener shown. in Fig. 2 applied thereto. Fig at is a modification of the device shown in Fig. 3. Fig. 5 is an enlarged sectional view taken on line 55 of Fig. 4f.

My window cord fasteners are readily adapted to application with the window frames and sash of ordinary construction, as shown in Fig. 1, where a counterweight l0 slides between the Window frame 11 and the wall stud 12 and it attached by means of a. thimble 34 to one end 13 of a cord 14c which passes over a pulley 15 secured in the casing 11, and is attached at its other end 16 to a window sash 17.

The fasteners are all punched out of sheet metal in the forms shown in Figs. 2 and 5. The fasteners shown in Fig. 2 have a stem portion 18 which is provided at one end with a circular head 19 from which issue a number of prongs 20, bent outward from head 19 as shown in Fig. 8. At the opposite end of stem 18 are a number of rectangular Serial No. 107,152.

wings 21 and 22whichissue oppositely from both sides of stem 18 and are separated by spaces of a width a trifle greater than that of the wings 22 and 21. Each of the wings 21 and 22 is provided with a small sharp triangular barb 2e punched out of the body of the fastener, as shown in detail in Fig. 5. The application of this fastener is clearly shown 'in F igs.'1 and 3. The wings 21 and 22 are bent about the end 16 of cord 1% with the barbs 2i pointing inwardly, thus clenchingthe cord and securely attaching the fastener thereto. The pronged head 19 is of such a size that'it just passes into the circular hole 25, with which all sash are equipped, and when the same reaches the bottom of the hole 25' and is given a blow with a hammer the prongs 2O straighten out'and hold head 19' inplace within said hole, allowing the cord 1% to fall in the usual groove 26, as clearly shown in Fig. 1.

In case thefastener shown in Fig. 3 proves tobeftooflexible I employ the form shown in Fig. d',"which is not so advantageous in that it has one less prong and is more eX- pensive to'make. In this fo'rma double head is used comprising portions 35 and 36 which are, respectively, provided with prongs 37 and 38. From heads 35 and 36 issue stems 39 and 4.0 at the end of which are barbed wings 41 and 42. The whole is punched out of one piece of metal, the heads being fastened together and folded over each other at 1:3. Stem L0, it will be noted, is shorter than stem 39, so that wings i2 lit in the spaces between wings a1, and vice versa, making the same firmly grip and hold the cord attached thereto. The two stems 39 and 40 being spread, as indicated, greatly stiffens the device and holds the cord more securely in place within the groove 26.

The advantages of my invention are manifest. The fastener is simple and easy to, make. It is readily attached to the cord and the sliding parts by the simple use of a hammer, eliminating the use of knots or other clumsy expedients, and yet giving a firm hold on the parts gripped. It also takes up the wear which would otherwise be given to the cord, thus prolonging the life of the same.

I claim:

1. In combination with a sash having acylindrical seat in the side thereof and a groove extending therefrom, a member having oppositely-extended pairs of barbed wings to engage about a cord in said groove adjacent the end thereof and secure the member thereto, and a pronged disk on the end of said member adapted to enter said seat and connect the cord with the sash, said disk having the prongs thereof radially curved toward the center of the disk so that they may be forced into the wood surrounding the seat when they are brought into a common plane.

2. In combination with a sash having a cylindrical seat in the side thereof and a groove extending therefrom, a plate-like member having a plurality of prongs bent outward from the plane thereof and adapted to enter said seat and to be forced into the wood surrounding the seat when the prongs are brought into the plane of the member, and means on said member for securing the same to the end of the sash cord.

3. In combination with a sash having a cylindrical seat in the side thereof and a groove extending therefrom, a member having a pronged disk on one end adapted to enter said seat, the prongs on said disk being radially curved toward the center of the disk so that they may be forced into the wood surrounding the seat when they are brought into a common plane, and means on said member for securing the same to the end of the sash cord.

4:. In combination with a sash having a cylindrical seat and a groove extending therefrom, a member adapted to engage said seat and be secured therein, said member having a. pair of arms extending upwardly on both sides of the sash cord, and means on said arms for engaging the sash cord and holding the member in place thereon.

5. In combination with a sash having a cylindrical seat and a groove extending therefrom, a member adapted to engage said seat and be secured therein, said member having a pair of arms extending upwardly on both sides of the sash cord, and oppositely-extended barbed Wings positioned in alternation upon said arms for engaging the sash cord and holding the member in place thereon.

O. In combination with a sash having a cylindrical seat and a groove extending therefrom, a member adapted to engage said seat and be secured therein comprising two disk portions bent over on each other and having alternately-disposed radial prongs bent out of the plane of said disks and adapted to be forced into the wood adjacent said seat when the prongs are brought into the plane of the disks, an arm extending up ward from each disk and positioned on each side of the sash cord, and means 011 said arms for engaging the cord to hold the fastener in place thereon.

In testimony whereof I aflix my signature in presence of two witnesses.

JOHN D. C. KNAPP. Vitnesses J. IVLYNGH, M. J. CAIN.

fiopies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. G.

Images