US880865A

US880865A - Sliding door.

Info

Publication number: US880865A
Application number: US32291406A
Authority: US
Inventors: Newton A Davis
Original assignee: Individual
Current assignee: Individual
Priority date: 1906-06-22
Filing date: 1906-06-22
Publication date: 1908-03-03
Anticipated expiration: 1925-03-03

Description

NEWTON A. DAVIS, OF CHICAGO, ILLINOIS.

sLIDING noon. f

Specification of Letters Patent.

Patented March 3, 1908.

Application led June 22. 1906. Serial N0. 322.914

To all whom it may concern:

Be it known that I, NEWTON A. DAVIS, citizen of the United States, residing at Chicago, in the county of Cook and State of Illinois, have invented new and useful Improvementsin a Sliding Door, of which the following is a specification.

This invention relates to improvements in sliding doors and more especially to the class of doors used on express and mail cars; and has for its object to provide a door that is weather' proof and can be easily opened and closed.

In the drawing, Figure 1v is an elevation looking at the inside of a car, the door being partly open. Fig. 2 is a vertical section on line 2, Fig. 1, looking in the direction indicated by the arrow; and Fig. 3 is a horizontal section on line 3, Fig. 1.

A may represent the body or one of the side Walls of a car; B the sliding door, and C the car-doorway.

The body ofthe sliding door may be of the usual construction and is supported in its suspended position by means of hangers 4 and 5 rigidly secured to the door and having the grooved track or trolley rollers 6 journaled therein, as best shown in Fig. 2. An angle plate consisting of a vertical part 7 and a horizontal part 8 1s rigidly secured to the inside of the car, the track-rail 9 supporting the sliding movement of the door, being fastened to the horizontal part 8.

The track-rail 9 is provided with cut out notches or depressions 10, forming a low part in the track, as shown in Fig. 1. y notches consist of an incline 11 and a stop'- shoulder 12. position the track rollers rest in the lowest lfart of the notches in the track and abut against shoulders 12, the bottom of the door resting on the sill 13 and back of a ledge 14 formed thereon. The partly open position of the'door in Fig. 1, corresponds to the posi.- tion-in Fig. 2, that is, the trolley rollers being on the high part of 'the track and the bottom of the door raised up proportionately from the sill and entirely out of contact therefrom during the time that the rollers rest in the high part of the track in the opening and closing movement. When the rollers strike the incline in the trackon the closing movenient, the door gradually lowers until it is tightly closed at the bottom. By this arrangement it will bc readily seen with what ease a sliding door may be opened and closed These When the door is in its closedwithout the possibility of cramping or stick- 1n f An angle orgchannel-plate 15 is rigidly fastened to the top of the door, the freeliange 16 being set away far enough from the back of thel door to provide a space 17 (Fi 2) for the loose engagement of a corresponding flange 18 of. an angle-plate 19 secured to the top-part 20 of the door casing. The flanges 16 and 18. overlap each other, the flange 16 fitting `loosely into the space 27 between the free flange 18 andthe casing. The lianges 16 and 18 always overlap no matter whether the door is open or closed, and in addition to making a weather proof closure, also lock the door against a lateral displacement at the top and the hanger rol ers from running off the track. The relative position of the flanges shown in Fig. 2, corres onds to the open position of the door. hen the door is closed the flange 16 drops down and nearly contacts with the horizontal part of flange 18.

The reardoor post D (Fig. 3) has an-angle plate 21 secured thereto. The web 22 of this 'plate will conform to the contour of the surface covered and has the inner edge turned at right angles to provide a free flange 23, leaving a space 24 between the same and the adjacent inner lside of the door post. The corresponding edge of the door has a channel late 25 mounted thereon.

-The inner side ange 26 of this plate overlaps the free flange 23 and occupies the space 24, when the door is closed, as shown in Fig. 3. The front edge of the door will close into the door-post, not shown, in the usual manner. By this arrangement it will be readily seen that a sliding door can be made substantially weather-proof and cannot be affected by atmospheric changes, and

can be opened and closed with the greatest facility under all ordinary conditions.

Having thus described my invention, what l claim is- 1. In a sliding door structure, the combination with the door and door casingspaced laterally from each other, and a trolley rail secured to the latter and trolley wheels to `the former, of a plate extending substantial'ly the width of the casing and having a horizontal portion underlying the under side of the upper part thereof and an u turned fiange occupyin the space between c oor and` casing, and a p ate extending substantially the width of the door and having a horizonltal ortion overlying the top of the door 'and embracing the-rear vertical ed e of the door a ependng flange overlapping the .other flange and interposed between the latter and the door-casing. v

5 2. In a sliding door structure, the combination with the door and door casings aced laterally from each other, of a channe iron having one flange secured to the inner face of l the rear sidepost of the door-casing and the 10 'other flange received freely in the space left between door and casing, and a channel iron with one flan e spaced from t e face of the door so as to flange and the casing, when the door is closed. In testimony whereof I afix my signature, in presence of two subscribing witnesses.

NEWTON A. DAVIS. Witnesses:

J. P. DoNALsoN, L.' B. COUPLAND.

e received between such free