US2315365A - Auxiliary door construction - Google Patents

Description

Pneniea Mar. 3o, 1943 2,915,365 i -v .mxmmnr noon CONSTRUCTION George C. Christy, Application July 91.1939, serial No, 281,543 e claims..v (c1. zo-z'z) 'Ihis invention relates to auxiliary door convstructions to be used for vehicles o1' any kind to which it is adapted and has for its object to provide a new and improved device of this descripl' tion.

The invention has as a further object to provide an auxiliary door constructionv particularly adapted for railway cars used in the shipment of grain or other bulk commodities, or small package goods, where there is a likelihood of the material being shipped to become dislodged in transit, obstructing or preventing the opening of the main car door. In the shipping of grain, it is usual at the present time to provide a closure for the lower part of the door opening by nailing boards in position across the door opening. When the car is unloaded, these boards are knocked off and are usually injured or` broken so that they cannot be used again. 'I'his resuits in a very large expense to the railroad,

requiring new boards for each shipment of grain. One of the objects of the present invention is to provide an auxiliary door construction which becomes a part of the car and which can be moved into an inoperative position when other commodities are being shipped, and then can be easily and quickly moved into an operative position when grain or similar material is' shipped in the car, the auxiliary door construction lasting the life of the car. 1

The invention has other objects which are more particularly pointed out in the accompanying description.

Referring now to the drawings, Fig. 1 is a side view of a portion of a car showing the door openins' and the auxiliary door construction in its closed position;

Fig. 2 is a sectional view taken on line 2-2 of Fig. 1;

Fig. 3 kis a part sectional view, with parts broken away, showing the door and the door post;

Fig. 4 is a sectional view showing the upper guiding device for the door;

Fig. 5 is a view showing the gravity latch at the top of the door; o

Fig. 6 is a sectional view showing the locking bar for connecting the meeting edges oi' the two doors when closed; v

Fig. 7 is a view showing a modied form of connecting the meeting edges of thev two doors when closed; o v

Fig. 8 is a sectional view taken on line 8 8 oi' Fig. 1;

Fig. 9 is a fragmentaryv sectional view-taken on line 9-9 of Fig.v 1'; and ,t

'-Fig. 10 is a side view of the locking bar removed from the door.

`Like numerals refer to like parts throughout o o the several iigures.

The present invention embodies av door con-v struction, in addition to the regular doors of the car, which becomes a permanent part of the car and which is out of the way when not in use, but which is brought into position to close the lower part of the door opening when grain or similar material is to be hauled in the car. As herein shown, the auxiliary door construction consists of two sectionsi and l2, which. may be made in r any desired manner of 4suitable material so as to have Vsuiiicient strength. When the door is in use, the vtwo sections are pulled out by means of the countersunk handles 3, untilv their edges meet.

When the door sections are not in use, they are' moved back into door receiving receptacles lla and 2a in the 'wall of the car so as to be entirely vout ofthe way. There is preferably a member Ib located at the bottom of the receptaclesv la. and 2a which has an inclined face Ic, so that if any grain or other material should get into the space between the door and the outer wall of the car,

it vwill automatically be discharged therefrom.

One of the door sections is provided with a tongue 4 and the other with a groove 5, the

` `sections there are guides 1.

tongue going-into the groove when the door sections are closed, as shown in Fig. 3, to prevent leakage of the grain.A There are guides 6 on the floor of the car between which the door sections are guided, and at the upper end of the door These guides are angles 1a, as shown in Fig. 4, and the door has a T-top 1b. The thin portion of .the door section 1e iits into the space 1c between the guides. There are preferably roller bearings 'llt between the T-top 'Ib and the angle guides 1a. 'Ihere is a gravity latch 8 at each edge of the door opening. This gravity latch when the door section There are wedges Il on the door post and wedges I2 on each door section, which engage when the door is moved to its closed position, so as to insure a tight lit of the door against the inside door post, see Fig. 3.

'I'he latch and its relation to the top of the door is shown in Fig. 5. When the door sections are brought together to close the opening, there is a sliding locking bar or keeper for locking them in position. This may be of two forms. As shown in Figs, 1 and 6, this locking bar I4 is channel-shaped and slides along the top of the door sections. When the door sections are in their open position, it is slid back along one of the doors so as to be entirely out of the way. When the door sections are in their closed positions, it is slid along so as to engage both door sections, as shown in Fig. 1, and is held in position by a spring lock I5 on the side of one of the door sections, as the door section 2. The end of this `lock engages lugs I1 on the locking bar, see Fig. 8. The lock I5 has a bent end |5a which passes through a slot I5b in the door section so that the lock may be controlled from the outside of the door. There is a baiiie plate |50 which. is attached to the lock I5 and which is of sufficient length to cover the slot |51). There are stop lugs I6 on the locking bar whichengage lugs I6a on the door sections so as to limit the sliding movement of the locking bar and there are also locking lugs Ida on the locking bar which lock the bar when it is in its locking position, so that it cannot be moved upwardly oi of the door sections.

The locking bar may also be of the form shown in Fig. 7, which consists of a member I9, one on each door section, and a sliding member 20 which slides in these members and when the door sections are closed, slides across so as to be in the member I9 of each door section. It is then locked in position.

There is an opening in each of the door sections and a pressure release door 2| covering the opening in each of these door sections. These pressure release doors are on the outside ofl the grain door. There are handles 22 pivotally connected with the door at 23. At the point where the handles are located, there are depressions into which the handles when released, automatically drop, so as to be inside of the door line when not in use. There are guides 24 along which the doors 2| slide. open position by the latch 25. When these doors are opened, some'of the grain in the car flows out so as to release the pressure of the grain on the main doors'so that they may be easily opened. The release doors 2| are preferably countersunk in the auxiliary doors so that they will not interfere with moving the auxiliary doors back into the wall of the car. There is the usual outer doo: which entirely closes the opening when the auxiliary doors are closed and when they are opened.

I have described in detail a particular construction embodying the invention, but it is of course evident that the parts may be varied in form, construction and arrangement without departing from the spirit of the invention as embodied in the claims hereto appended.

I claim:

1. An inner auxiliary door for railway cars having the car outer wall formed of twosubstantially parallel wall members separated by a space with a door opening extending through both of said wall members comprising two door sections separate from the regular car door and in the same vertical plane as the space between said wall members of the car outer wall and extending part way up the door opening and having meet- These doors are latched in their.

ing edges adapted to be brought together to close the lower part of the door opening, and door receiving receptacles in and formed by the walls of the car opposite the door opening, into which said door sections are received, so as to be out of the way and enclosed by said walls when not in use.

2. An inner auxiliary door for railway cars having the car outer wall formed of two substantially parallel wall members separated by a space with a door opening extending through both of said Wall members comprising two door sections separate from the regular car door and in the same vertical plane as the space between Vsaid Wall members of the car outer wall and extending part way up the door opening and having meeting edges adapted to be brought together to close the lower part of the door opening, door receiving receptacles in and formed by the walls of the car opposite the door opening, into which said door sections are received, so as to be out of the way and enclosed by said walls when not in use, said door sections being provided with openings, pressure release doors insaid openings and in the plane of said sections, said sections having recesses above the pressure release doors providing means for sliding said pressure release doors therein to open the openings, to let out material in the car, to release the pressure on the door sections so that they can be opened.

3. An inner auxiliary door for railway cars having the car outer wall formed of two substantially parallel wall members separated by a space with a door opening extending through both of said wall members comprising two door sections separate from the regular car door and in the same vertical plane as the space between said wall members of the car outer wall and extending part way up the door opening and having meeting edges adapted to be brought together to close the lower part of the door opening, door receiving receptacles in and formed by the walls of the car opposite the door opening, into which said door sections are received, so as to be out of the way and enclosed by said walls when not in use, said door sections being made of metal, and a countersunk release door on one face thereof and separate guides in the plane of said doors along which the countersunk release doors slide to open them.

4. A door for railway cars comprising two sliding door sections having meeting edges adapted to be brought together to close the lower part of the door opening, a channel member into which the upper edge of one of said door sections is received when the door sections are in their open position and movably mounted thereon and adapted to be moved to engage the top of the other door section when the door sections are in a closed position, and a latchingA device connected with one of the door sections, in the plane of said door section and adapted to engage said channel member when it is in engagement with the other door section so asto fasten it in position.

5. An inner grain door for railway cars having the car outer wall formed of two substantially'parallel wall members separated by a space with a door opening extending through both of said wall members, the space between said wall members on each side of the door opening forming door receiving receptacles closed at the top, bottom and end and open at the end opposite the said door opening comprising two movable door sections separate from the regular car door and in the same vertical plane as the space between said wall members of the car outer wall and adapted to be moved to an open and closed position, said door sections being provided with an openingr near the bottom thereof, a pressure release door closing said opening the face of said door section being provided with a depression into which said pressure release door is received, said depression having a portion beyond the door opening into which the pressure release door is received when moved to its open position, and means for moving said pressure release door to open the opening, to let out material in the car, to release the pressure on the door section so that it may be easily opened.

6. An inner auxiliary door for railway cars having the car outer wall formed of two substantially parallel wall members separated by a space with a, door opening extending through both of said wall members, said inner auxiliary door comprising two door sections separate from the regular car door and in the same vertical plane as the space between the said wall members of the car outer wall, said wall members of said car outer wall and the space between them forming door receiving receptacles closed at the top, bottom and one end and open at the end opposite said door opening, said inner auxiliary door sections closing the open ends of said receptacle both when the door sections are in their closed position and in their open position, said inner auxiliary door sections having meeting edges adapted to be brought together to close the door opening.

GEORGE C. CHRISTY.

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