US1421592A

US1421592A - Grain-car door

Info

Publication number: US1421592A
Application number: US515891A
Authority: US
Inventors: Siemsen Jurgen
Original assignee: BERTON C EMPFIELD
Current assignee: BERTON C EMPFIELD
Priority date: 1921-11-17
Filing date: 1921-11-17
Publication date: 1922-07-04
Anticipated expiration: 1939-07-04

Description

' J. SIEMSEN. GRAIN CAR DOOR. APPLICATION FILED NOV. 17,1921.

Patented July 4, 1922. 2 SHE ETSSH EET I J. SIEMSEN.

GRAIN CAR'DOOR. APPLICATION F| LED NOV. 11, 1921.

0 v Amma W. 2

SFATEQ JURG-EN SIEIVLSEN, OF BROKEN BOW, NEBRASKA, ASSIGNOR TO BERTON C. EMPFIELD, OF BROKEN BOW, NEBRASKA.

GRAIN-CAR DOOR.

Application filed November 17, 1921.

T 0 all whom it may concern Be it known that I, JURGEN SIEMsnN, a citizen of the United States, residing at Broken Bow, in the county of Custer and State of Nebraska, have invented certain new and useful Improvements in Grain- Car Doors; and I do declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

This invention relates to an improved door for. use in connection with a grain car and one object of the invention is to provide a door for the grain or freight car slidably mounted in an improved manner and movaable into and out of a protected housing and to further provide improved operating means for the door, the operating means including an actuating bar serving not only as actuating means for the door operating means but further serving as means for locking the door in a closed position.

Another object of the invention is to provide a door operating means including a driving shaft and improved type of bearing bracket for the driving shaft having one end portion constructed for engagement by a turning bar so that the turning bar can be held against movement and thus lock the shaft against rotation.

Another object of the invention is to provide an improved manner of mounting the actuating bar upon the drive shaft, the bar being so mounted upon the shaft that it may be loosely-mounted thereon or held in turning engagement with the shaft.

Another object of the invention is to pro vide a grain car construction in which the door may bevery easily moved to an open or a closed position and may be securely locked in the closed position so that it cannot accidentally move towards an open position.

i This invention is illustrated in the accompanying drawings, wherein:

Figure 1 is a view showing a portion of a grain or freight car in side elevation and provided with a door and door-operating means of the improved construction.

Figure 2 is a view similar to Fig. 1 but looking from within the car.

. Figure 3 is a longitudinal sectional view taken along the line 33 of Fig. 2.

Specification of Letters Patent.

Patented July a, 1322.

Serial No. 515,891.

Figure 4; is a fragmentary sectional view taken along the line 1 4 of Fig. 1.

Figure 5 is an enlarged view in elevation Isjhowing the drive shaft and actuating lever Figure 6 is a longitudinal sectional view taken along the line 66 of Fig. 5.

Figure 7 is a transverse sectional view taken along the line 77 of Fig. 5.

Figure 8 is an enlarged view showing the lever bar positioned for turning engagement with the drive. shaft.

Figure 9 is a View similar to Fig. 8 showing the bar when moved out of turning engagement with the shaft.

The car 1 is of the ordinary freight car construction and is provided with a doorway 2 which will be closed by the door 3. This door 3 fits into a housing 4 secured against the inner face of the wall of the car and rests upon a track or rail 5 which extends across the doorway. An abutment strip 6 is provided at the opposite side of the doorway so that sliding movement of the door will be limited. A longitudinally extending groove or pocket 3 is provided in the door 3 and

strips

7 and 8 are positioned in this groove or pocket 3. The upper strip 7 is provided with teeth as shown in Fig. 1 and constitutes a rack bar which will be engaged by the pinion 9 mounted upon the inner end portion of a drive shaft 10. This drive shaft 10 is rotatably mounted in a bearing sleeve 11 carried by a bearing bracket 12 which is secured upon the outer face of the car wall and is provided with an outstanding arm 13 at one end. This arm 13 is provided with an opening to receive one end of a lever bar as will be hereinafter brought out. The drive shaft 10 is provided with an enlargement 14 for engaging the outer face of the bearing bracket and holdingthe shaft against longitudinal sliding movement through the sleeve 11 and the outer end-portion of this shaft is first reduced to provide a section 15 which is squared in cross section and then further reduced to provide a section 16 which is circular in cross section and provided with a slot 17. The outer end portion of the shaft is provided with a head 18 so that the lever or turning bar 19 will be held upon the shaft. This. turning bar 19 is provided at one end With a head 20 having an opening 21 to receive the drive shaft. This opening 21 is rectangular for the greater portion of its length and at one end is provided with a semi-circular extension 22. From an inspection of Figs. 8 and 9, it will be seen that the portion 15 of the shaft which is rectangular in cross section will fit into the major portion of the opening 21 and that the reduced portion 16 of the shaft which is circular in cross section will fit into the semicircular end portion of this opening. Therefore, when the turning bar is positioned upon the reduced portion 16 of the shaft, the bar will be loosely mounted upon the shaft and will have sufficient longitudinal movement to permit the bar to be moved into and out of the opening formed in the arm 18 of the bracket 12.

/Vhe n the door is to be closed or opened, the turning bar can be placed upon the squared portion of the shaft and the shaft can be easily rotated. As the shaft rotates, the pinion by engagement with the rack bar 7 will impart longitudinal sliding movement to the door and the door will be moved to an open or a closed position according to the direction in which the shaft is rotated. Vith the door in a closed position, the turning bar can be moved onto the reduced portion 16 of the shaft and the bar then moved to position this reduced portion in the semicircular extension 22 of the opening 21. In this position, the bar can be swung into alinement with the opening in the arm 13 and can then be moved to extend the end of the bar into this opening. The head of the bar can then be moved onto the squared portion of the shaft and the shaft will be held against rotation. In order to permit of the bar being held upon this squared portion of the shaft, there has been provided a securing pin 23 which will be preferably.

further that by means of this bar, the shaft can belocked against rotary movement and thusthe door retained m a closedposition. In'some cases when movmgthe door to an open position, the door can be partially opened .by means of the turning bar and then can be, pushed open with the turning bar hanging loose upon the reduced portion 16 of the shaft. It will thus be seen that there has been provided a car door having improved operating means by .means of which the door can be very easily moved to an opened or a closed position and further there has been provided an operating means including a bar serving both as means for turning the shaft and as means for looking the shaft against rotation.

I claim: V

1. A car having a doorway, a door slidable into and out of position for closing the doorway, actuating means for the door including a bracket carried by the wall of the car and having anoutstanding arm, a rotatable shaft extending through the wall of the car, a turning and locking bar loosely mounted upon said shaft and movable longitudinally thereof from a position permitting free swinging of the bar upon the shaft to a position causing rotation of the shaft when the bar is swung, the bar when in the first position being movable longitudinally of itself to bring its free end into and out of engagement with the outstanding arm of the bracket, the bar when engaged with the outstanding arm being held against swinging movement upon the shaft,and means for releasably holding the bar in the second men tioned positionupon the shaft to hold the shaft against turning when the bar. is in engagement with the arm of the bracket. 7

2. A car having a doorway, a door slidably mounted for moving into and out of a position for closing the doorway, a bracket carried by the wall of the car and having an outstanding perforated arm, actuating means for the door including a rotatable shaft extending through the door and having its outer portion provided with a non-circular portion and a reduced portion adjacent the non-circular portion, a turning and locking bar fitting loosely upon the outer end portion of said shaft for movement longitudinally .thereof and having a shaft-receiving.

opening having a portion conforming to the contour of the non-circular portion of the shaft and adapted to fit thereonto impart turning movementto the shaft, the opening of the bar having a side extension for receiving the reduced portion of the shaft andv permitting the bar to move longitudinally of itself to move its free endinto and out of the perforation of the bracket arm, and means for releasablyholding the .bar upon the non-circular portion of the shaft with the free end portion of the bar extending into. theperforations of the arm of said bracketto hold the shaft against rotation with the door in an adjusted position. I

3. A car having a doorway, a housing extendingfrom the doorway againstthe Wall of the car, a track extending from the housing across the doorway, a door. slidableinto and out of the housing and movable across the doorway upon the/track, a rack carried.

by said door, a bracket carried by the wall of said car and having at one end an outstanding perforated arm and at the other end a'bear ing embedded in the car wall, a shaft journalled in said bearing and having its outer portion provided with a portion rectangular in cross section and adjacent the rectangular portion having a reduced port-ion circular in cross section, a pinion carried by the inner end portion of said shaft and engaging said rack bar, an actuating and locking bar having a head fitting upon the outer portion of said shaft and having a shaft receiving opening having a rectangular por tion for receiving the rectangular portion of the shaft and a semi-circular portion for receiving the circular portion of the shaft, and means for releasably holding said bar upon the rectangular portion of said shaft with the free end of the bar fitting into the perforated arm of said bracket.

4. A structure having a doorway, a door slidable into and out of position to close the doorway, a rack carried by the door, a bracket carried by the wall of the structure and hav ing at one end an outstanding perforated arm, a shaft extending through the door and having its outer portion provided with a non-circular portion and adjacent the noncircular portion having a reduced portion, a pinion carried by the inner end portion of the shaft and engaging the rack bar, and an actuating and locking bar having one end portion provided with a shaft-receiving opening having a portion for receiving the non-circular portion of the shaft and asemicircular portion for receiving the reduced portion of the shaft whereby said bar may be moved longitudinally of the shaft from one portion thereof to the other and moved longitudinally of itself to move its free end into and out of the perforation of the outstanding arm of the bracket.

In testimony whereof I have hereunto set my hand.

J URGEN SIEMSEN.