US950717A - Door-supporting device. - Google Patents

Description

M. COSSEY.

DOOR SUPPORTlNG DEVICE. APPLmATIoN FILED 1EB1L1905` Patented Mar.1,1910.

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MYRGN COSSW'EY, 0F NEW YORK, N. Yi., ASSIGNOEL TU' RELIANCE BALL BEARING DOOR HNGE-R COMIPANY, OiE NEW YORK, N. fl'., A CQRPORTON OF NEW YORK.

DOOR-SUPPORTING DEVICE.

Speccation of Letters Patent.

1 intenten nar. i, ism.

Application tiled lebrnary 11,' 1905. Serial No. 2452405.

To all'whom it may concern: n y

Be it known that l, Marron Cosssr, -a citi vzen of thellnited States, andV resident of the borough of'Brooklyn, city oir' New York, State ofNew York, have invested. certain' y .new and useful Improvements in Door-Supporting Devices, of which the following is a speciiication.'

My invent-ion relates to door 'supporting devices -wlierein the door moves Abetween upper and lower trackswitli antifriction de- I vices interposed between its ends and the re spective tracks. ln devicesoi this character the weight of thedoor is necessarily entirely supported by the antit'riction devices o'n'the lower track. lt is desirablethat the antifriction devices beniovable with' the door but a less distance; also that theV units of cach series of antifriction devices be keptin .fixed relative .posit-ion with regard to each other, and that the upper and lower series of antifriction devices' :move substantially the same distance.

The object of my invention is to provide door supporting devices which` will operate in the manner above suggested.

The accompanying drawing illustrates a preferred embodiment of my invention and Figure vl` is a side elevation showing af door, or sliding panel, movable between two tracks. Fig. 2 is a cross section taken on the line 12-12 of Fig. l. Fig. 3 is a detail view of a ball carrier or spacer. l

The upper track is indicated by l, and the lower track by 3. if;

The door is indicated by G and, as shown, is provided with a metal bar 2 at itsv upper and lower ends, said bars being securely tastened to the door and forming part thereof.. These metalbars 2, as well as the tracks l and 3 are grooved, and these grooves :t'orm ways in which antifriction devices, shown as balls llf, may run. Any desired number of balls may be inserted between the tracks and the of the door, and in the present ,case l have shown two balls in the vseries at each end. ln order to maintain the balls in each series in fixed" relative position with regard to each other, I employ a bar C provided with two openings A which form cages to receive the balls, and the barwill 'be supported on the balls between the tracks and the ends of the door. Owing to the arrangement of the opposing grooves and the balls running in them, the door is ettectually prevented Yfrom being moved inward or mitward away from` the tracks, but permits Vthe door to more freely'edgewise. v i' ln a construction of this character the cn4 tire weight of the. door is supported on the lower series of balls. and when the door is,

moved edgewisetlle balls will more with it.

but will travel only'halt the dislzpicc that the door travels. As the bflls are connected by 'the bar C3 it is-evidcnt that each ball in the series will travel the saine distance as'the others. i

As betere stated, it is desirable that the upper series of ,balls shall travel substantially the same distance asthe"lowerones and inorder to do this, it is necessary. to have substantially.the same pressure on. the upper series of barils as there is onv the lower series. To accomplish this result, the upper track bar l is connected to its support by screws 10.' l' also employ two adjusting screws 7,- 7, which pass through the support and engage the upperside of'the bar.

'In assembling the parts the door will be so j fitted to exert more o r less pressure on the f upper series of -balls' when the'track 1 is held against the support by the screws l0.

. But if this pressure is not sutlicient or is not` uniforrnthroughout the length of the track l, either or both ot the screws l0 can be loosened, and either or both of the screws 7 be tightened to force the track more tightly against the balls, and thus .increase the press sure on the balls to the desired extent.

Obviously the screws 7, 7, might be con"I nected to the track bar l by a 4ball and socket joint, and serve aloneV to supportthe upper track l instead of the screws 10. Also other means may be employed to eli'ectthe adjustment oit the track' l.

Having described the invention, I claim l. ln door supporting devices, the combination of upper and lower grooved tracks, a door interposed between them and having grooves in its upper and lower ends to register with the grooves in thel'espcctive tracks, a scriesot balls interposed in the grooves between the door and tracks, and means for adjusting the upper track verticallyto vary the pressure on the upper series of balls.

2. In door supporting devices, the comb1- vided with grooves in its upper and lower ends to register with thc grooves in the rcspective tracks, a series of balls interposed between the doors and the respective tracks, a 'separate strip for each series of balls, having cages to receive the balls of the series and hold rthem in fixed relative position to each other, and means for adjusting the upper track vertically to vary its pressure on the 'upper series of balls.

3. In a door supporting device, the combination with upper and lower grooved tracks,

of a door carrying upwardly and down- ,Wardly facing grooved tracks registering with the first mentioned tracks, a series of balls interposed 1n the grooves, and means fo' adjusting one. of Said tracks to var v the pressure on the balls.

4. In a device of the class described, the combination with tracks at its top and bottom, of fixed upper and lower grooved tracks registering with said first xnentioncdjtracks, a series of balls in said grooves, and `retainers for said balls.

In witness whereof I have signed my naine to the foregoing specification in the presence of two subscribing witnesses.

MYRON COSSEY. lVitnesses HORACE L. BALCH,

a door having groovcd

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