US1371858A - Grain-door - Google Patents

Description

D. D. CAMPBELL.

GRAIN DOOR.

APPLICATION FILED JUNE 14. I920.

Patented Mar. 15, 1921.

JAEf/WQ m FEE a extremely simple form of grain cars.

'm'reo" surges PATENT" entice;

GRAIN-DOOR.

Specification of Letters Patent.

Patented Mar. 15, 1921.

a lication filed-June 14, 1920. Serial No. 388,910.

- vented certain new and useful Improvements in Grain-Doors, of which the following is a specification.

This invention relates to improvements in grain doors .for railway freight cars, and the objects of the invention are to provide an oor which will not get out of order and which will prevent leakage of the grain in transit and to facilitate loading and unloading of the Further objects are to provide. a grain door that may be placed in position in sections and will remain in place without being fastened to the sides of the freight car by nails, screws, or fastenings of any kmd, and

that may be removed at destinatlon without damagin the door or the car in any way.

a With t e above and other objects in view,

the invention consists essentially of the construction described in detail in the accompanying specification and drawings.

In the drawings:

Figure 1 is a perspective view of anembodiment of the outside of the grain door.

Fig. 2 is a sectional perspective view of the same.

Fig. 3 is a horizontal section of the door.

Fig. 4 is a perspective view of one of the sections of the same.

Like characters of reference refer to like parts on all the drawings. Referring to the drawings, C and D represent the two lower sections of the door and E and F the two upper sections of the door, the two lower sections being formed considerably wider than the upper sections, and all of the sections being rabbet jointed to each other but not being fastened rigidly to ether.

hese sections may be constructed in any convenient manner, the sections shown being formed of two thicknesses of boards, of such width and fastened together in such a manner that each section overlaps the section immediately underneath for the space of two ini'ies.

Each section is reinforced by a plurality of say three reinforcing supports or strlps 10 at right angles to the bottom of the section in such a manner that the strips of each' section will be immediately above the strips of the section below, whereby the reinforcng stri s will extend vertically from the to to t e bottom of the car.

he edges of each strip are beveled in such a manner as to leave exposed the'bOttom of --the strips reinforcing the sections immediately above so as to permit pressure being brought to bear on the bottom of such strips for-the purpose of removing the sec-- tions of the door.

The sections E and F are relatively wider than the sections 0 and D and these sections are rovided with suitable retainin plates G. hese retaining plates are suita ly supported. from the side of the door and adapted to Sroject over the ends of the sections.

ne retaining plate G is provided on each side of the door and is formed in two sec-- tions, a lower portion, 11 and an upper portion, 12. The edges of the portion 12 are spaced back a distance from the edges of the portion 11, whereby the distance between the inner edges of the portion 12 will be greater than that between the inner edges of the portion 11 of the plate G on opposite sides of the door. In this way, the sections C and D may be raised and lifted outwardly between the portions 12 without engaging the said portions.

In this way it is possible to provide wider lower sections C and D since the limit to the width is the distance between the top of the portions 11 and 12 and the roof of the car.

In filling the car the sections are placed in position as indicated, the pressure of the grain holding the sections firmly in position against the side of the door opening. Should it be desired to inspect the car, the top of the section F may be removed and a sam 1c of the grain taken. When it is desire to empty the car, the sections may be successively disengaged by the use of a suitable le'ver or bar H which may be insertedto press on the reinforcing strips 10 which, when pried upwardly, will carry the sections with them.

As-many changes could be made in the above construction and many widely different embodiments of my invention w thin the scope of the claim, constructed without de- What I claim as my invention is:

A grain door comprising upper and lower sections, the lower sections being wider than the 11 per sections, each section being forme with a plurality of reinforcing strips correspondingly spaced on all the sectlons and having the edges beveled at one end to permit the application of pressure to the end of the strip on the adjacent section, and a retainin means on the side of the car door inclu ng plates engaging the outer edges of the sections omopposite newness sides thereof, the inner edges of'the plates engaging the upper sections being a. greater distance apartt permit the lower sections to be with rawn between the plates designed to engage the 'upper sections.

In witness whereof I hate hereunto set my 20 hand in the presence of a witness. t DONALD D. CAMPBELL. Witness:

RUSSEL S. Sum.

an those engaging the lower 15 sections, and suificiently far a art to

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