US860934A - Grain-car door. - Google Patents

Description

PATBNTED JULY 23,1907. w. H.MGMA0HBN.

No. 860,934l

GRAIN GAR DOOR. ArPmcATIoN-FILED Dnc.2e.'1oe.

W W f M W W1 TNESSES THE NoRms PEtERs cal; wAsHINGru. D. c.

WILLIAM H. MCMACHEN, OF SUPERIOR, WISCONSIN.

GRAIN-CAR DOOR.

Specification of Letters Patent.

Patented July 23, 1907.

Application filed December 29, 1906. Serial No. 349,932.

To all whom 'it may concern:

Be it known that I, WILLIAM H. MCMACHEN, a citizen oi the United States oi America, residing at Superior, in the county of Douglas and State oi Wisconsin, have invented certain new and useful Improvements in Grain-Gar Doors, of which the following is a specification, reierence being had therein to the accompanying drawing.

This invention has relation to certain new and useful improvements in grain car doors, and it relates more particularly and specifically to an auxiliary or supplemental door arranged in the main car door in such a manner as to be opened without operating the main car door, whereby to relieve pressure of the grain against the main car door, to such an extent as to permit the easy operation of the latter in opening.

The specific construction by which I obtain the objects of my invention will appear in the course of the following description, in which reference is had to the accompanying drawings forming a part of this specification, like numerals indicating like parts throughout the several views, wherein:

Figure l is a iront elevation of a grain car door embodying my invention; Fig. 2 is a rear elevation of a part of a grain car door embodying my invention7 showing the door oi the car in section; Fig. 3 is a transverse vertical sectional view of a part of a grain door embodying the invention, the base-sill and a part of the ioor being shown in section, Fig. 4 is a vertical sectional view oi a part of the auxiliary door showing the manner in which the same is normally held closed; Fig. 5 is a horizontal sectional view of a part oi the main grain car door, and of one of the door jambs, and Fig. G is a detached detail perspective view of one of the iastenings for the main car door.

My invention is particularly designed for use in connection with a type of grain car door such as shown in my application filed Feb. 7, 1906, Serial No. 299,921, though is by no means conned to use in connection with this particular type of door. However, as I have used the door in connection with this type of main car door, I have shown it applied to such type of door in the present illustration. The said main door need not be further described than to state that it comprises an upper section l, and a lower section 2, which sections are hinged together by hinges 3, the lower section 2, carrying handles 4, oi substantially inverted U- shape, having one leg secured to the lower section of the door, and the other leg secured to a side strip 5, chains 6 being connected to said handles and to eyes 8 carried by the door jambs 9. The main door is fastened in closed position by means of a plurality of pivoted catches l0, one oi which is shown in detail in Fig. 6 of the drawing.

The upper section I of the door and the lower section 2 thereof, are each provided with vertical posts 11, and between the posts l1 carried by the lower section 2 of the door, the latter is provided with an opening 12, located at or adjacent to the lower edge oi the door. A cross bar 14, extends across the rontfoi the lower section 2 of the door, and between this cross bar and the door is pivotally mounted the auxiliary or supplemental door l5. This auxiliary or supplemental door is usually constructed oi sheet metal; it is pivoted at 16, adjacent to one end of the cross bar 14, and has its upper edge turned outwardly or ianged 'to orm a ledge 17, which rests on the cross bar I4. The said ledge is cut away adjacent to the pivoted end of the auxiliary or supplemental door l5, as shown at 18, whereby not to interiere with the elevating oi said auxiliary door, and adjacent to the other end o said cross bar I4, the latter is recessed or cutaway as shown at I9, in order that either the fingers oi the hand, or a suitable instrument or tool may be inserted under the ledge 17 to raise the door I5.

The ends of the auxiliary door I5 are inclined, making the door somewhat wedge-shaped in form, so that its lower edge is oi less width than the upper edge. The ends oi the said door I5 are received between cleats or braces 20, disposed with their backs against the posts Il, and their ends abutting respectively with the bar I4, and a base bar or sill 2l. This base or sill 2l has a metallic angle strip 22 thereon, one flange ot which lies on the top oi the base or sill and the other iiange oi which lies against a shoulder formed on this base or sill by cutting away the latter longitudinally, as clearly illustrated in Fig. 4 o the drawings. The downwardly depending flange of the angle strip 22 is provided with a seat 23, and the door l5 at a point adjacent to its lower edge is provided with a projection 24, which is not oi sufficient length to prevent the forcing oi the door 15 down into seated position. This projection I have usually made by simply indenting the reariace oi the door by a suitable tool, which causes the metal to be forced outwardly on the front face oi the door, and this outwardly forced portion when the v door is fully closed engages in the seat 23, and thus holds the door .15 against accidental displacement. The base-sill 2]., is usually provided with metal strips 25, 26, on its opposite faces to seat with the car floor 27, as shown in Fig. 3. The cleats or braces 20 are usually faced with a metal strip 2S, between which metal acings and the section 2 the auxiliary door 15 is received to make a close fit. rlhe particular shape oi the door l5 admits oi' its being readily raised so as to allow a portion oi the grain to be removed from the car, and thus relieve the pressure against the'main car door to permit the ready operation oi the latter. The flanging over oi the upper edge oi the auxiliary door provides an easy means for operating the latter, and the provision of tlie seat 23 and projection 24, provides an eicient means to prevent the accidental displacement of the door.

What I claim:

havingl an opening adjacent to the lower edge thereof', of an auxiliary door pivoted to the main door and adapted to normally close said opening, a base-bar adjacent to which the lower edge of said auxiliary door is received, a metal facing on said base-bar having a seat, and a projection on the auxiliary door for engagement with said seat to hold the auxiliary door normally closed.

In testimony whereof I affix my signature in the pres 20 ence of two witnesses.

WILLIAM H. MCMACIIEN,

Witnesses F. S. PARKER,

.IULIUs L.- COHEN.

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