US1002145A - Sash-balancing device. - Google Patents

Description

J. J. GILROY. BASH BALANCING DEVIGIL, APPLICATION FILED 00'1.14, 1910.

1,002,145, I Patented Aug. 29,1911.

BIA PLANOGRAPH c0.,w/1smNGT0N u c UNIT i FFTE JAMES J'. GILROY, OF LOST CREEK, PENNSYLVANIA.

SASI-I-BALANCING DEVICE.

ocales.

To all whom it may concern:

Be it known that 1, JAMES J. GILnoY, a citizen of the United States, residing at Lost Creek, in the county of Schuylkill and State of Pennsylvania, have invented a certain new and useful Sash-Balancing Device, of which the following is a specification.

This invention relates, generally, to window sashes and particularly to devices for balancing the sash, and it has for its object to provide a simple, inexpensive, and durable device of few parts, the installation and repair of which may be accomplished without the use of skilled labor, adapted to suspend the sash at any desired point, and it consists of the parts and combinations of parts hereinafter described and claimed.

In the accompanying drawings forming a part of this specification, Figure 1 is a perspective view showing my improved device in use. Fig. 2 a vertical section on the line 2-2, Fig. 1. Fig. 3 a perspective view showing the parts of the adjusting device for holding and increasing or decreasing the tension on the sash supporting straps. Fig. 4: a detail horizontal section through one of the sash stiles. Fig. 5 a detail perspective view of the hook plate and hooks.

Similar letters refer to similar parts throughout all the views.

Referring to the drawings A represents a window casing in which the sash slides, and of the kind known as a solid frame, and which differs from the ordinary frame in that it is not provided with a parting head for the sash. The stiles of the sash are formed wit-h a shallow groove a (see Fig. 4) to receive a narrow strap 7), preferably of metal, the ends of which are slotted, as at c, in order to engage a fastening means at top and bottom of the frame to hold the straps in place. At the top of the frame a plate (Z is secured to the piece 6, commonly known as the pulley piece, to which is connected the hooks 7, one for each sash strap, said hooks being formed of a length of round rod bent to angular shape, as best shown in Fig. 5, and is formed with a blunt or flat head 9 at one end, as indicated in dotted lines. The rod is bent away from the head at an obtuse angle, as at h, and is then bent at an angle, as at i, and, finally, has its free end 7', bent at right angles to the body 2' and slightly tapered or sharpened to facilitate its entrance in the Specification of Letters Patent.

Application filed October 14, 1910.

Serial No. 587,040.

opening is therefor in said plate. The plate is formed with four openings or perforations 70, two for each hook, the hooks being inserted point foremost through the lower openings before the plate is secured to the pulley piece, so that thehooks will be locked against removal by the heads 9 after the plates are secured in place. The pulley piece is formed with a depression or recess for each of the heads whereby they may be pushed backward therein when it isdesired to remove the points of the hooks from their openings in order to attach or detach the straps therefrom. The straps rest in the angle formed in the hooks adjacent the head, the purpose of the angle being to permit of the ready removal of the straps therefrom when the point of the hook is withdrawn from its opening and, the hook turned downward, into the position shown in Fig. 5, sothat the strap may be readily drawn off the same.

At the lower end or bottom of the pulley piece a hook Z, is driven in order to receive the lower end of the strap thereon. Thus the straps are securely fastened to the pulley piece but may be readily removed therefrom should occasion require.

At a suitable point or points on each of the sash stiles a recess is formed which opens into the grooves a, to receive a threaded bar m, to one end of which is secured a head or block a through which a longitudinally extending rectangular opening 0 is formed to receive the strap. By means of a nut 29 on the rod m the latter may be moved in or out in order to increase or decrease the tension on the strap, said nut working in the space between the wings r of a plate 8 secured over the recess in the stile, and said wings being formed with openings 8 to receive the rod in and act as a guide therefor.

With the parts in the positions described it will be understood that either the top or bottom sash may be raised or lowered and held suspended in their raised or lowered positions by the straps to which they are connected through the rod m, the friction head of the latter being so adjusted as to bind or pinch the straps and acting as a counterbalance to hold them in their adjusted posit-ion.

Since by reason of my invention the use of balancing weights are obviated, it follows, of course, that the use ofexpensive Patented Aug. 29, 191.1;

box frame are also done away; also should a strap wear out or break it requires but a few moments to replace it without calling in skilled help.

Having described my invention what I claim as new is:

1. A sash balancing device, comprising a strap having its ends adapted for attachment to a sash frame, a device slidably connected to said strap and carried by a sash for balancing the sash, and means for adjusting said device to how the strap to vary the frictional engagements between said parts.

2. A sash balancing device, comprising a strap having its ends adapted for attachment to a sash frame, a device carried by a sash and comprising an elongated head having a vertical opening therethrough for said strap, and means for adjusting said head to bow the strap to vary the frictional engagement between said head and strap.

A sash balancing device, comprising a strap having its ends adapted for attachment to a sash frame, a device carried by a sash and comprising a screw rod having an elongated head formed With a vertical opening for said strap, and a nut for adjusting said head laterally to how the strap to vary its frictional engagement with said head.

In testimony whereof, I affix my signature, in the presence of 'two Witnesses.

JAMES J. GILROY. lVit-nesses THOS. F. GILL, J. R. CoYLE.

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

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