US1888327A - Hopper car construction - Google Patents

Description

Nov. 22, 1932. w. P. MURPHY HOPPER CAR CONSTRUCTION Filed Oct. 2, 1929 5 Sheets-Sheet Inventor.- R

Nov. 22, 1932. w, P, MURPHY 1,888,327

HOPPER CAR CONSTRUCTION Filed Oct. 2, 1929 5 Sheets-Sheet 2 K m F gi l 5 Invenlor: iVbfzerPMur by Nov. 22, 1932. w MURPHY 1,888,327

HOPPER CAR CONSTHUGT ION Filed Oct. 2. 1929 s Sheets-Sheet 5 Inventor:

flitmeg Patented Nov. 22, 1932 UNITED STATES PATENT OFFICE WALTER 1. MURPHY, OF CHICAGO, ILLINOIS, ASSIGNOR TO UNION METAL PRODUCTS'GJ,

COMPANY OF CHICAGO, ILLINOIS, A CORPORATION OF DELAWARE HOPPER GAR CONSTRUCTION Application filed October 2,1929. Serial No. 396,665. i i.

door frame member made of an integral one piece casting, which, however, may be made of built up members, but I do prefer to form the door frame of an integral casting to assure a constant relationship between the' door and the door frame.

The perimeter of the door frame, or at least a part thereof, is provided with oblique door engaging surfaces 10 and the door 11, which m is hingedly supported upon the car body or'' preferably upon the door frame itself, is also My invention relates to railway cars having discharge hoppers and more particularly to the relation between the hopper door and the edges of the door opening which con- '5 stitute;a door frame. I i

The object of the invention is to provide the door frame or a part thereof with means which cooperate with the adjacent margin of the door to completely close the opening or at least provide sufliciently close engagement between the door and the frame to retain the lading within the car.

A further object of the invention is to loosely hinge the door to the car or to the door frame so that the hinge will not prevent the door from being drawn into engage- V ment with the door frame.

Any convenient door raising, door looking or operating mechanism may be used with my construction.

In the drawings:

Fig. 1 shows a typical plan view of a hopper which, together with other hoppers, forms the bottom portion of a railway hopper car.

Fig. 2 is a section through a typical hopper showing parts of the car construction.

Fig. 3 is a section on line 3.3 of Fig. 2.

Fig.4: is a section on line 4-4: of Fig. 1.

Fig. 5 is a fragmentary View showing the relation between the corner of the door and the corner of the door frame.

Figs. 6 to 10 inclusive show modifications described hereinafter.

In the drawings the usual parts of the car are shown, such as center sill 1; cover plate 2;

side sill 3 and side wall 4. The hopper is suspended between the center sill 1 and side wall at of the car and comprises an inner wall 5 and outer wall 6 connected by the hopper floor 7. The usual hopper car is provided with four, siX or perhaps more of such hoppers and the adjacent hoppers on the same side of the car are connected by sloping walls 8. The hopper opening is surrounded by the hopper walls 5 and 6, hopper floor 7 and upper sloping wall 8 and the portions of these members surrounding the door opening constitute a door frame.

The drawings show the hopper and the preferably provided with oblique surfaces 12 which are adapted to cooperate with the door engaging surface of the door frame to close m the door opening. 4 i i y In the preferred form the oblique engaging surfaces are only provided at the sides and lower edge of the door opening, but if a more complete closure is desired to haul sand m or other fine material, this relationship between the door and the door frame may be provided around the entire perimeterof the oor. ex

In the form illustrated in Figs. 3 and ithe door frame is jecting oblique flanges 14 and the door is provided with corresponding outwardly projecting, oblique flanges .15, and the oblique engaging surfaces 10 and 12 are arranged upon the flanges. The margins of the door opening may be further reinforced by providinga re -flange 16 at the outer edge of the oblique flange l4 and the outer edges of the door may be further reinforced by providing are-flange 17 at the outer edge of the flange 15, as shown in Fig. 6. I

I prefer to provide horizontal and vertical clearance between the hinge pin and the hinge butt and/or strap so as to provide the socalled loose hinge so that'the hinge will not prevent the door from being drawn into engagement with the engaging surface of the door frame whenthe door is being closed.

Fig. 7 showsthe hinge strap 18 provided with an elongated hole 19 to provide a loose hinge construction.

Fig. 8 shows a construction whereln the oblique flanges 20 on the door-extend upwardly from the door instead of downwardly,

as shown in Fig. 6.

provided with outwardly pro- 75 Fig. 9 shows the door frame provided with an arcuate flange so as to present a rounded surface to the door '26 and the door is provided with a corresponding arcuate flange 27 which is adapted to cooperate with the arcuate flange of the frame to close the opening. The contacting surfaces between the door frame and the door do not necessarily have the same radii, as it is preferred that the radius of the arc of the door flange 27 be slightly larger than the radius of the flange 25 of the door frame so as to provide a line contact between the two elements, which allows these elements to adjust themselves to slight irregularities.

10 shows a construction wherein the frame is provided with an outwardly flared 30 and the door is provided. with a 7 11011113941 surface 31 which engages the flange 30 of .the frame to provide aline contact. This door may be stiffened if desired by the flanges -32 and33.

The portion of the frame adjacent the side walls 5 and 6, respectively, of the hopper mange into the lower portion of the hopper floor 7 on comparatively large radii (36), as shown 'in 2 and 5, to assure a better contact between the door and the frame adjacent these corners. The upper corners may be formed in a similar manner.

The accompanying drawings illustrate the preferred form of the invention, though it is to be understood that the invention is not limited to the exact details of construction hown and described. as it is obvious that various modifications thereof within the scope of the claims will occur to persons skilled in the art.

I claim:

1. In a railway hopper car, the combination of a hopper door frame having a discharae opening provided with an outwardly flared oblique door engaging surface borderting the entire perimeter of the discharge opening, and a door provided with outwardly flared oblique surfaces bordering the entire perimeter of the door ada ted to engage the door engaging surfaces of the frame when in closed 2. in a railway hopper car. the combination of a hopper door frame having a discharge with rounded edges bordering the entire perimeter of the discharge opening, and a door provided with arcuate surfaces bordering the entire perimeter of the door adapted to engage said rounded edges when in closed position.

3. In a railway hopper car. the combination of a hopper door frame having a discharge opening with rounded edges bordering the entire perimeter of the discharge opening, and a door provided with arcuate surfaces having radii larger than the radii of said rounded edges bordering the entire perimeter of the door adapted to engage said rounded edges when in closed position.

4. In a rallway hopper car, the combination of a hopper door frame having a discharge opening provided with outwardly flared oblique door engagingsurfa-ces border ing the entire perimeter of the discharge opening, and a door provided with rounded edges bordering the entire perimeter of the door adapted to engage the door engaging surfaces of the frame when in closed position.

5.. In a railway hopper car, the combination of a hopper door frame having a discharge opening provided with outwardly flared oblique doorengaging surfaces bordering the entire perimeter of the discharge opening, and a door provided with an out wardly flared flange bordering the entire perimeter of the door adapted toengage the 4 door engaging surfaces of the frame when in closed position, said flange provided with a continuous reflange extending outwardly from the door.

WALTER P. MURPHY.

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