Search Images Maps Play YouTube News Gmail Drive More »
Sign in
Screen reader users: click this link for accessible mode. Accessible mode has the same essential features but works better with your reader.


  1. Advanced Patent Search
Publication numberUS1307877 A
Publication typeGrant
Publication dateJun 24, 1919
Filing dateMay 2, 1917
Publication numberUS 1307877 A, US 1307877A, US-A-1307877, US1307877 A, US1307877A
InventorsMigkle Herbert Paul
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
US 1307877 A
Abstract  available in
Previous page
Next page
Claims  available in
Description  (OCR text may contain errors)



APPLICATION FILED MAY 2. 1917 r u M H Patented June 24, 1919.




1 ,307, 877 Patented Jun 24, 1919.


I noon-surron'r.

To all whom. itmayco nc ern: 1

Be, it known that I, MIoKLn lilnnnnlrr 1 PAUL, .azcitizen oflthellnited States, residing in Elkton,,Maryland, have invented cer: tain Improvements in Door Supports, of

which the following is a specification.

My invention relates to sliding doors, and particularly tothe mounting thereof, its ob ject being to construct a door-supporting device in such a waythat the. door will be easy to operate, can not be removed from its supports, nor can the supports themselves be removed or injuriously tampered with when the door is closed. n

This object I accomplish in the manner hereinafter set forth, reference being had to the accompanying drawings, in wh ch- Figure l is a side view of a freight car having doors supported in accordance with my invention; a

Fig. 2 is a side view, on a much larger scale than Fig. 1, showing the way in which the car doors are supported, a portion of the car structure being broken away;

Fig. 3 isa vertical section on the line 3-3, Fig. 2, and

Fig. 4 is a ir-4., Fig. 2.

Referring in the first instance to Fig. 1, a freight car 1 is shown as being provided with a pair of overlapping sliding doors w and y, each door being suitably guided at its upper edge and having its lower edge mounted upon a series of supporting brackets 2, each of which is attached to the body of the car in a manner hereinafter set forth. Referring to Figs. 2 and 3, the doors a: and y are shown in overlapping position and properly mounted at the doorway of the freight car. In these views, the upper portion 5 of theside of the car forms the lintel of the doorway m and the lower portion 6 of the side of the car forms the sill of the doorway, the floor of the car being shown at 7 Projecting outwardly at intervals from the upper portion 5 of the side of the car are a series of brackets 8, which carry a longitudinal inverted T-beam 9 which serve as a guide for the upper edge of each door, the doors being equipped with a series of upwardly projecting Z-bars whose upper flanges overlaps the lower flanges of the inverted T-bar 9, the upper ends of the doors being thereby properly guided and prevented from cominginto contact with one an.- other.

horizontal section on the line Specification of Letters Patent.

Patented June 24,1919.

. Application fiieania 2, 1917. 'sasm .l6s,8o.

n The brackets 8 are secured to the body of. the car by means of; bolts 11 whichpass through the side thereof and are retained at their inner ends by means of nuts 12 inside thecar, and to prevent tampering with any of the guiding mechanism the upper edges of the doors are inclosed between the side of the :car and a longitudinal cover plate 13 which is mounted upon the depending flanges of the bracketsS and which extends upwardly to the roof 14 of the car.

Each supportin bracket 2 consists of a frame 15 projectlng outwardly from the lower portion 6 of the side of the car-and secured thereto by means of a bolt 16 retained in place by a nut 17 upon the inside of the car frame 18. Each bracket is provided with an axle 19 upon which are mounted a pair of door-supporting rollers 20, one for each of the doors. During the assembling of a bracket the axle is placed in position from the rear, it having a reduced stub 21 at its outer end for insertion into an opening in the outer portion of the frame 15. The axle is then held against rotation by means of a set screw 22 at its inner end. After being placed in position with the rollers p-roperly mounted upon it the axle is rendered proof against withdrawal by means of an angle bar 23, which is secured to the rear face of the frame 15 bymeans of rivets 24, as shown in Figs. 2 and 4..

Each bracket is additionally secured to the car in the following manner: The horizontal member of the angle bar 23 is inserted between the lower portion 6 of the side of the car and the floor 7 thereof, as

shown inFig. 3, and retained in that position by means of suitable screws 25. As these screws are inside of the doorway it is impossible to reach them from outside when the door is closed, and it is consequently impossible to remove the bracket at such a time, thereby preventing any unauthorized removal of the door.

The rollers 20 upon which the doors are supported are preferably conical, as shown.

This construction serves at all times to throw the doors inwardly against the doorway. To prevent the doors contacting with each other, I mount a spacing roller 26 upon the Y erally contract its bearing face upon the roller 20 and permit limited lateral play of the rail thereon which, in connection with the inclined face of the roller, causes a constant tendency of each door to move toward the side of the car.

Although I have shown each bracket as equipped with two supporting rollers and cooperating with two doors, it isv obvious 10 that my invention is applicable to brackets supporting any number of overlapping doors,or one door, and it'is equally obvious that the rollers need not be conical but may be cylindricalfwhen an inward thrust .upon the door is not required.

Similarly, while I have shown my invention in connection with the mounting of Copies of this patent may be obtained for freight car doors, I do not limit myself to this use, as many kinds of sliding doors and windows may be mounted in this way.

I claim:

The combination, in a multiple door supporting bracket, of a frame, an axle carried thereby, a plurality of door supporting rollers mounted upon said axle, and a spacing roller between adjoining door supporting rollers, said spacing roller being of greater diameter than the door supporting rollers so as to project between the adjoining doors and prevent the same from contacting with one another.

name to this specification.


fiye cents each, by addressing the Commissioner of Patents, Washington, D. C.

Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US4588190 *Aug 5, 1982May 13, 1986S & N Manufacturing, Inc.Ball rebound apparatus
US8905500May 10, 2012Dec 9, 2014Steelcase Inc.Storage assembly includes a base assembly, a first cabinet assembly and a second cabinet assembly with each slidable with respect to the base assembly
U.S. Classification16/100, 49/426
Cooperative ClassificationE05D15/0669