US968387A - Grain-door for cars. - Google Patents

Description

F. A. MGGOMBER.

GRAIN DOOR FOR CARS.

APPLIUATION FILED mm. s. 1910.

Patented Aug. 23, 1910.

2 SHEETS-SHEET l.

P. A. MUOOMBER.

GRAIN DOOR FOR CARS.

APPLICATION nun JUNE 8. 1910,

Patented Aug. 23, 1910.

2 SHEETS-SHEET 2.

o o I o o o ::::I

o i o FRANK AUSTIN mccomnn'n, or MARSHALLTOWN, IOWA.

GRAIN-DOOR FOR CARS.

Specification of iiettrs Patent.

Patented Aug. 23, 1910.

Applicationfiled June 8, 1910. Serial No. 565,682.

To all whom it may concerni Be it known that I, FRANK AUSTIN Mo- CoMBER, a citizen of the United States, residing at Marshalltown, Marshall and State of Iowa, have invented new and useful Improvements in Grain- Doors for Cars, of which the following is a specification.

My present invention pertains to freight car doors of the horizontal sliding type, and is designed more particularly as an improvement upon the door disclosed in my Letters- Patent of April 5, 1910, numbered 954,326.

One of the objects of the present invention is to provide a sliding door, designed especially for use as a grain door, and constructed to resist the pressure of grain and to prevent the escape of grain past its lower and vertical edges.

Another object is the provision of a slidable grain door that is adapted to be freely moved to and from its closed position without liability of binding or displacement.

Another object is the provision of improved means for fastening thegrain door and the relief door with which the same is preferably equipped.

The present invention will be best understood by reference to the following description when taken in connection with the accompanying illustration of one specific embodiment there, while its scope will be more particularly pointed out in the appended claims.

In the drawings which constitute part hereof: Figure l is a side elevation showing my novel door as fastened in its closed position. Fig. 2 is a vertical section on the line 22 of Fig. 1. Fig. 3 is a horizontal section on the line 33 of Fig. 1. Fig. 4 is a side elevation showing the door in its open position. Fig. 5 is a horizontal section taken in the plane indicated by the line .-5 of Fig. 1, looking downward. Fig. 6 is a perspective of a portion of the grain door.

- Similar letters designate corresponding parts in all of the views of ,the drawings,

referring to which:

A is a facing surrounding the door opening B in the side wall C of -,a car and projecting outward a slight distance be ond said wall. The lower portion of the righthand upright comprised in said facing is undercut, as lndicated by D in Fig. 5; and

in the county of in the lower horizontal portion of the facingis formed a longitudinal groove E that is open atits right-hand end, Fig. 4.

F is an upright keeper fixed to the lefthand upright of the facing A and designed to receive the left-hand end of the grain door G and crowd the same inward to assure' a' tight'closure of said end, and H is a horizontal track disposed below the lower portion of the facing A and comprising an inner longitudinal bar-a, an outer longitudinal bar I), and anti-friction wheels a spaced apart and mounted between the said bars a and b. The inner bar a is fixed to a strip 03, disposed below the facing A, and to spaced strips e at the right of said facing A, between which strips e and also between the wheels 0 openings are afi'orded, Fig. 5, designed to enable dirt and sweepings from the inside of the car to drop, with a view to preventing the same collecting and interfering with the opening and closing of the door.

I is a fixed retainer which extends toward the right from the facing A and is designed to prevent outward movement of the upper edge of the grain-door G when the latter is open, and J is a fixed stop for limiting movement of the grain-door toward the right.

The grain door G is preferably, though not necessarily, of steel or other suitable sheet-metal, and is preferably provided adjacent its right-hand end with an outwardlydirected flange f, designed to afford a hold when the door is to be opened or closed. The said grain door rests and is designed to be moved on the. wheels 0, which are arranged a slight distance below the upper edge of the bar b, and is provided on its outer side with traveling wheels 9 which bear on the upper edge of the said bar I). Adjacent its lower edge the door G is provided with an inwardly directed horizontal flange K which is designed, when the door 1s closed, to enter and occupy the groove E inthe lower facing portion. The arrangement of the lower edge of the door G at "the inner side of the track bar I) prevents outward movement of said edge when the same is subjected to'the pressure of grain carried in bulk, and the disposition of the door flange K in the groove E effectually prevents the downward escape of grain when the door is closed, and also prevents upward jumping of the door during the opening and closingthereof. At its righthand edge the door G is provided with an inwardly and forwardly inclined flange L which serves, when the door is closed, to lap the undercut right-hand portion D of the facing A and in that way effectually. prevent leakage of grain at the right-hand edge of the closed door. It will also be observed that when the closed door is subjected to the outward pressure of grain, the flange L will be pressed outward against the inner side of the undercut portion D, the lower portion of the door will be pressed outward against the inner side of the track bar I), and the left-hand edge portion of the door will. bepressedoutward against the keeper F, and in consequence the escape of grain at all points will be precluded; the arrangement of the flange L in the groove E preventing the downward passage of grain from the door opening, when the door is pressed outward as stated. Attention is also invited here to the fact that when the door is closed, the flange K closes the right-hand end of the groove E and prevents leakage of grain at that point.

At M the door G is provided with a vertically slidable relief door having an outwardly and upwardly extending projection X, and at P a locking bar Q is loosely con- 'nected with the side wall of the car. The said locking bar Q is notched at m to engage 'the projection N, and is provided with a hinged end portion R, apertured at p and designed to be placed over the pin S on the door and fastened by the chained hook T and seal U. When the locking bar is thus fastened, the relief door M is held against upward movement, and opening or movement of the door G toward the right is prevented. When, however, the locking bar is disconnected from the pin S and lifted from the projection N, the relief door M may be raised to permit grain to flow out and lessen the pressure against the inner side of the door G, and then said door G may be readily moved toward the right.

V is an upper horizontally slidable door, and W is a fixed horizontal track-for the same; the said track extending above the door opening and a suitable distance to the left of the same.

I At X is an upright keeper to receive the right-hand end of the door V when the latter is closed, and at Z is a stop for limiting movement of the door V toward the left, while at Z is a guardg designed to prevent flapping of the door V away from and toward the side of the car, when said door Vis not in use.

Fixedto and depending from the door V A is a bar A on which is a hinged section 13 having apertures to receive the pin S and the auxiliary pin S on the door G.

lVhen both doors G and V are to be fas-' tened in their closed positions, the hinged end portion R of the locking bar Q is first placed on the lower pin S, after which the section B of bar A is placed -on both pins S and S and secured by the hook and seal before described. A

The upper door V need not be used except in bad weather or when the car is to be used to carry freight other than grain in bulk, and from this it follows that when desired the upper door V and the parts appurtenant thereto may be dispensed with-without affecting my present invention.

Having described my invention, what I claim and'desire to secure by Letters-Patent, is:

1. The combination of a wall in which is an opening, a facing having a portion disposed below the opening and portions disposed at opposite sides of said opening and also having a longitudinal groove in the first-named portion, and an undercut in one of the second-named portions, an upright keeper on the other of the second-named portions of the facing, a track bar spaced from the wall, anti-friction means mounted between said wall and bar, a door slidable toward and from the said upright keeper and having an inwardly directed flange disposed to occupy the .groove in the firstnamed portion of the facing and also having on its upright edge remote from the keeper an inwardly and forwardly directed flange disposed to enter the undercut of the facing portion, anti-friction means carried on the door and bearing on the said track bar, and a retainer for the upper edge of the door fixed to the wall and disposed at the opposaid opening and also having a keeper at one side of the openin g and=an -undercutportion 10 at the opposite side thereof; of a track bar spaced from the wall, a door slidable between the wall and track bar and toward and from the keeper and having an inwardly directed flange disposed to occupy the longitudinal groove of the wall, and an inwardly and forwardly directed flange disposed to lap the said undercut portion and means carried by the door and bearing on the track bar.

3. The combination with a wall having an opening and a longitudinal groove below said opening and an undercut portion at one side of the opening; of a suitably-mounted slidable door having an inwardly directed flange disposed to occupythe longitudinal wardly and forwardly directed flange disposed to lap the said undercut portion.

4. The combination of a wall having an groove of the wall and also having an inopening, a suitably-mounted slidable door having a'pin, a slidable relief door carried by the first-named door and having a projection, and a locking bar loosely connected with the wall and engaging the projection of the relief door and connected to the pin ofthe first-named door.

5. The combination with a wall having an opening and a longitudinal groove below 10- said opening; of a suitably-mounted slidable door having an inwardly-directed flange disposed. to occupy said groove.

In testimony whereof I have hereunto set my hand in presence of two subscribing witnesses.

FRANK AUSTIN MGCOMBER.

Witnessesi F. E. NonTHUP, F. E. BARRETT.

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