US1739557A - Door hanger - Google Patents

Description

Dec. 17, 1929. MCTIGUE 1,739,557

DOOR HANGER Fil'ed Nov. 19, 1928 vwcnto c j H M5: To}? we aiibozwu o Patented Dec. 17, 1929 UNITED STATES;

PATENT OFFICE FRANCIS K. MCTIGUE, OI HOLYOKE,.MASSACHUSETTS; ASSIGNOR TO THE COBUR-N TROLLEY TRACK MFG. CO2, OF HOLYOKE, MASSACHUSETTS DOOR HANGER Application filed November 19, 1928. Serial No. 320,447.

This invention relates to builders hardware and more particularly to a door hanger of the type employed; for sl-idably mounting doors of elevators and similar doors which are suspended from an overhead track and move horizontally into and out of a closed position. 7

One object of the invention is to providev a door hanger including a track having an outstanding flange upon which is. mounted a rail so formed. that a rotatably mounted wheel carried by a door-engaging bracket may move easily along the rail without being liable to leave the rail in case a door is carelessly moved while opening or closing it.

Another object of the invention is to provide the hanger with an improved type of wheel consisting of a comparatively few number of parts and capable of being easily and quickly removed.

Another object of the invention is to so form the wheel that it will be permitted to rotate very freely and to prevent dust and dirt from being liable to accumulate within the wheel.

The invention is illustrated in the accompanying drawing, wherein Figure 1 is a view showing the improved door hanger and its track in transverse section, the door and door-engaging bracket being in elevation;

Fig. 2 is a view taken on the line 22 of Fig. 1;

Fig. 8 is a fragmentary sectional view illustrating a modified form of rail, and

Fig. 4 is a transverse sectional view through another form of rail.

The track constituting part of the improved door hanger is formed of channel metal and provided with upper and lower flanges 1 and 2 connected by a web 3 in which a suitable number of openings 4 are formed in spaced relation to each other longitudinally of the web so that suitable fasteners may be passed through the web to firmly secure the track in substantially a horizontal position over a doorway. The flanges 1 and 2 are thickened inwardly in order to add strength to the flanges and in addition provide them with inner surfaces which are inclined transversely and converge towards the Web 3. Upon'the lower flange is disposed a rail 5 which consists of a metal strip having a flat under surface and an. upper surface which is arcuate for the full width of the strip. By having the under surface of the rail flat it may have close contacting engagement with the sloping upper surface of the lower flange against which it is secured by pins 6 which are passed upwardly through openings 7 in the flange and fit tightly into openings 8 formed in the rail. In actual practice, the pins which are employed to fasten the rail or strip upon the flange are slightly larger thanthe openings 8 andwhen they are driven into place they fit very tightly. It should also be noted that, when the pins are driven into place, heads 9 will be formed upon their lower endswhich are seated in the enlarged lower end portions of the openings 7.

In Figures 3v and 4, there have been shown modified; forms of. rails. The rail 10 shown in Fig; 3. is quite similar-to the rail 5,, except that the fastener receiving openings 11 formed therein, are threaded in order to receive screws 12 which are passed upwardly through the openings 7 in the lower flange of the track and take the place of the fasteners 6.

In Figure 1,. the rail 13 instead of consisting-of a single strip is provided with a lower portion 14 consisting-of a thing strip of metal which is disposed beneath a strip 15 resembling the rails 5 and 10 and forming its upper portion. By this arrangement a less expensive metal may be employed for the lower portion of the rail and also it is possible to vary the height of a rail by using a strip, 14 of a desired thickness.

The door 16 is of a conventional construction and disposed beneath the track, as shown in Fig. 1. A suitablenumber of brackets are secured to the door with their upper end portions. projecting above the door. These brackets and rollers carried thereby are of a duplicate construction and one, which is indicated by the numeral 17, has been shown in Fig. 1. An axle 18 is passed through an opening formed in the bracket adjacent its upper end and at one end the axle is formed 4 the rail and allow the wheel to fit snugly thereon. This wheel is provided with a bore 25 which is counter-bored to form an annular shoulder 26 against which bears the outer race ring 27 of a'bearing fitted snugly within the wheel. The inner race ring 28 of the hearing fits snugly about the axle 18 against the spacing sleeve 22 and this inner ring projects beyond the axle for engagement by the nut 21. It will thus be seen that, when the nut is set in place and tightened, the inner race ring will be firmly gripped between the nutv andthe spacing sleeve. Bearingballs 29 are disposed between the inner and outer race ringsand, therefore, the wheel willbe permitted to turn freely about the axle. The outer race ring is held firmly against the shoulder 26 by a retainer ring 30 which fits snugly into the bore ofthe wheel and in order to prevent danger, of the retainer ring working loose, there has been provided a cover plate or disk 31 which is seated in a recess 32 formed in one side face of the wheel about the bore where it is secured by a suitable number of screws 33. This disk also serves to exclude dust and dirt from the initerio'rof'the'wheel. A similar disk 34 is provided at the other side of-the Wheel and se'-- cured in its seat 36 by securing screws 37 but the wheel .34 is formed with a central opening to receive the axle and spacing sleeve 22.

It should be noted that the distance between adapted to be secured to a door and project upwardly therefrom, an axle carried by said hanger adjacent its upper end and projecting transversely therefrom adjacent its upper end, a spacing sleeve upon said axle hearing against said hanger, a wheel arranged to run on 'thetrack and disposed about said axle and having a bore formed with an annular shoulder intermediate its depth, a disk carried by said Wheel atone-sidethereof and fitting snugly about said sleeve, a bearing in the ,bore of said wheel having an outer race ring fitting against said shoulder and an innor race ring fitting; snugly upon the axle against saidsleeve, a retaining nut carried by said axle and bearing against the inner race ring to clamp the same against the end of the sleeve, a retainerring in the bore of said wheel engaging the outer race ring to hold the same against said shoulder, and a disk secured against the wheel to close the bore at the opposite end thereof from the first disk andhold-the retaining ring against the outer race ring. Y i

In testimony whereof I affix my signature.

H FRANCIS H. MoTIGUE. 1 8.]

the wheel and the upper flange is less than i the depth of the groove and, therefore, when mountinga door, the wheels must be moved rail and the door may be very easily opened or closed without being liable to jam'b.

Having thus described the invention, I claim: 1

In a door mounting, a track to extend over a doorway transversely thereof, a hanger

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