US1581908A - Weightless sash construction - Google Patents

Description

April 20 ,1926.

B E. BARTHOLOMEW WEIGHTLESS SASH CONSTRUCTION Filed July 25. 1924.

Patented vApr. 20, 1926.

UNITED STATES BERT E. BARTHOLOMEW, or PASADENA, oAL I FonN IA.

WEIGHTLESS SASH CONSTRUCTION.

Application filed July 25, 1924. Serial No. 728,131.

To all whom it may concern *Be it known that I, BERT E. BAnTI-roLo- Mnw, a .citizen of the United States, residing at Pasadena, in the county of Los Angeles and Stateof California, have invented new and useful Improvements in Weightless Sash Constructions, of which the following is aspecification. y

This invention relates to window construction wherein sashes may be retained in ele vated position without the use of sash cords, weights and similar counterbalancing I devices.

An object of the invention is to provide a sash with a suitable roller adapted to engage and bear upon the window frame, whereby the sash will be urged against the opposite side of the window frame and frictionally held in position.

Another object of the invention is to provide a roller for a window sash adapted to engage the frame and provide means whereby the pressure exerted by the roller upon the window frame may be easily and conveniently varied.

Other objects will be made manifest in the following detailed description and distinctlypointed out in the appended claims, reference being had to the accomanying drawings for purposes of illustration, wherein: V

Figure 1 is a front elevation of a window frame having mounted therein sashes in which my improvement is embodied,

Fig. 2 is a detail horizontal section taken substantially on the line 2-2 of Fig. 1,

Fig. 3 is an enlarged detail elevation, parts being broken away, showing in section, taken substantially on the line 33 of Fig. 2, my improvement mounted therein, and

Fig. 4 is a side elevation of the housing which I employ, the roller being mounted therein.

Referring to the accompanying drawings, in which similar reference characters designate similar parts, a window frame F is provided with a pair of movable sashes having .frames S bearing my improved device, generally designated by the reference character '10. These devices are preferably mounted upon the same side of the sash frame S at points near the top and bottom thereof.

Each device consists of a suitable housing 11 having a squared body portion 12 integral with a tubular extension 18. Within the body portion 12 is provided a roller or wheel Struck out or pressed out from thebody portion 12 are a pairof oppositely disposed J grooves or channl'slS, inwhich the ends of the spindles 15. areadapted to slide. The

ends of the struck-out or pressed-out channels 18 adjacent the window frame F are.

turned over as at 19, so that the movement of the spindle 15 in this direction is limited at the side face of the sash frame Secured to the post 17 and extending into the extension 13 is a spring 20 herein shown as being a coiled spring, which has its other end secured to anut 21. The extension 13 has its end'flush with the inner face of the sash frame S, and is provided with a turnedover lip 22, against which rests the head 23 of a suitable screw 24, which screw 24 is threaded into the nut 21. It is seen that the screw 24 may be turned by applying a suitable tool, such as a screw driver, through the opening in the end of the extension 13, thereby making the screw head 23 accessible from the exterior surface of the sash frame S. By rotating or twisting the screw 24, the nut 21 will be caused to pass in the extension 13 toward the sash frame S, thereby increas- 14, preferably, having integral spindlesl15 16 which hasan integral ing the compression in the spring 20 and increasing the pressure with which the roller 14 bears against the window frame F.

The assembly of the construction is quite simple, which consists of simply boring one or more holes in the sash frame S, inserting the complete device, and mounting the sash within the window frame. The screw 24 is then turned until the roller 1.4 is caused to bear upon the window frame F with the desired pressure, which causes the complete frame to bear against the opposite side of the window frame F with an equal amount of pressure, increasing the friction at that point and enabling the sash to remain in equilibrium at any point within the window frame. i

It is seen that I have provided a cheap, simple and durable device, which may be mounted ina sash frame and eliminate the use of sash weights.

It is to be understood that the drawings and the above detailed description are used for illustrative purposes only, and that Various changes in the detail of construction may be: made without departing from the housing having one end. fixed tosaid fork,

the other end of said spring being fixed to a nut, and a screw adaptedt-o'slidesaid nut in said housing, thereby varying compression in, said spring.

2.. In a' Window sash frame, a housing extending laterally through the frame, a fork disposedfwithin said housing, a roller rotatable within said fork adapted to engage the window frame, a nut slida-b'lewithin said housing, a spring secured: to the nut and fork, a screw threaded into the nut, said screw having its head exposed at one. end of the housing, and means for'maintaining the screw within the housing.

3. In a window sashframe, a housing extending laterally through the frame, a fork disposed within said housing adjacent the window frame. a roller having spindles rotatable in said fork, there being grooves formed upon the housing in which the ends of the spindles areslidable, anut slidable in the housing, a spring disposed between the nut and fork, and a screw threaded into the nut having its head exposed, the ends ofthe housingbeing bent over to maintain the screw therein.

In testimony whereof I have signed my name to this specification.

BERT E; BARTHOLOMEVV.

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