US1888213A - Grain car door - Google Patents

Description

Nov. 22, 1932. A. a. H. BAKER 1 1,838,213

GRAIN CAR DOOR Filed Feb. .16, 1931 2 Sheets-Sheet 1 lyveqfor A.B.H.Baker Nov. "22, 1932. 'A. B. H. BAKER GRAIN CAR DOOR Filed Feb. 16, 1931 2 Sheets-Sheet Z h vcl rar A.B.H.Baker Patented Nov. 22, 1932 ARTHUR 3 11mm, or ronmen LA'IPR-AIIRIE, primrose, CANADA,

GRAIN can noon Application filed February 16, 1931, Serial m. 515,998, and in Canada May 5, 1936.

V The invention relates to improvements in grain cardoors and an object of the invention-is to provide a grain car door which p can be readily installed on the present grain L cars and which can be easily and quickly opened by an attendant to free the grain to run from the car and which is constructed to eifectively withstand the pressure of the grain when in use.

A further object is to construct a door embodying two similar right and left hand door sections normally spanning the door-.

way opening and locked together to withstand the pressure of the grain and adapted when unlocked to swing outwardly through the doorway opening under the pressure of the grain and thereby free the grain from the car, the outer ends of the sections at such A further object of the invention is to provide a construction which permits the door sections to be readily moved to a stored position against the interiorside wall of the car and which prohibits the removal at any time of such door sections from the car.

A further object is to provide a grain tight door and in the furtherance of such object to provide means for drawing the outer ends of the door sections tightly against the inner faces of the posts as the saiddoors are being passed to their closed posit-ions.

A still further object is to provide a simple, durable and effective means for reinforcing and releasably fastening the door sections together.

With the above more important and other minor objects in view which will become more apparent as the description proceeds, the invention consists essentially "in the arrangement and construction of parts hereinafter more particularly described, refer ence being had to the accompanying drawings, in which Fig. 1 is an exterior view of a grain car sectional view at 3-3 Figure 2.

times pivoting in respect to the door posts.

nafter shortly described. The customary and their outer ends extending to the inner sides of the door posts. 'Both sections are shown inFigu're 7.

provided with my door, the door being shown Fig. 4' is an enlarged detailed horizontal sectional view at 4-4 Figure 1.

Fig. 5 is an enlarged detailed vertical-sectional view at 5-5 -Figure'2. 9

Fig. 6 is a perspective view of a portionof H one of the door postsshowing a pair of guide tracks associated therewith. 1 ig. 7 is a perspective view ofuone of the corners of one of the door'sections. Fig. 8 is an enlarged detailed horizontal sectionalzview of one of the latches and associated parts as they appear in Figure 4.

In the drawings like characters of reference indicate corresponding parts in the several figures.- 1 I i r I The doorway opening 1 is bounded by the customary door posts 2 and 3,'lintel 4 and sill 5 and the doorway opening is spanned by-rny door, the details of which are herem outer closure door6 is herein-shown but such forms no part of the present invention as it is simply closed and sealed in the usual manner after-the carhas been loaded.

My door comprises two similar right and left hand door sections 7 and 8 of customary height and which are adapted to close the doorway opening, said sections atsu'ch time having their inner ends butted as shown of the same size and are identically constructed, each being provided at the exterior andv at the upper and lower edges with reinforcing transversely extending metal bars 9 and 10 suitably bolted orriveted thereto. The outer ends of the bars are all provided on their outer faces with similar T-shaped heads 11 amply reinforced by webs 12 provided, the heads being inset somewhat from' the ends of the section in the manner best To the section 7 of the door, I secure permanently aver'ticallydispo'sed metal plate 13 which in-the closed position of the door sections laps the adjacent end of the'door section Sand prevents the escape of grain through the crack appearing between'the ends of the closed door sections. It will be observed (see Figure 4) that when the sections are closed, the outer ends thereof lie to the inner sides of the post, that the inner ends thereof are butted and that the T-shaped heads 11 occupy at such time a position adjacent the inner corners of the osts.

Means are provided for re easably fastening the closed doorsections together, such means also reinforcing the :closed door sections. Said means embody upper and lower hinges 14 and 15 each having one wing 16 permanentlyfastened to the outer face of the section 8 and another wing 17 extending in front of the section 7 and having the free end thereof provided witha horizontal slot 18, the slot receiving in each instance a locking latch 19 pivotally attached by a vertical pm 20 to a wing or plate 21 permanently fastened to the section 7. The latch in each instance has the free end thereof horizontally slotted as indicated at 23 toreceive the eye ,of an eye bolt 24 secured to the door section and a locking pin 25 is provided to pass through the eye in advance of the latch and lock the latch against swinging outwardly. The locking pin is suitably attached to the door section by a chain or flexible line 26.

From theabove, it will be obvious that one can easily and quickly lock the door sections together by passing the latches through the slots 18, then swinging the latches to passthe eyes of the bolts through the slots 23 and finally passing the locking pins through the eyes in advance of the latches. The arrangemen-t just described also reinforces the locked of the grain within the car.

To the interior wall of the car at the sides of the posts, I locate similar upper and lower pairs of guiding tracks 27 and 28, the tracks of each'pair being arranged so that they pro vide a horizontally disposed bayonet slot 29 adapted-to receive slidably the heads 11. In actual practice, the tracks are in the form of metal bars held in spaced relation from the I interior wall of the car by intervening wooden strips 30, the wooden strips being narrower than the metalbars and thereby providing the bayonet slots as best shown in Figure 5. The ends of the bars 27 and 28 adjacent the posts are bent around the ends of the strips 30 in the manner best shown in Figure 6 to form pivot bearings 31 and theyv have theirextremities permanently secured to the post by bolts 32. 5

According to this arrangement when the door sections are passed to closed positions, the T-shaped heads are received within the bearings 31 and the bearingsand heads cooperate to form a pivot point around which the door sections are compelled to rotate'under the outward pressure of the grain upon the means locking the sections together being released.

- When it is desired'to store the sections, it is simply a matter of shoving them endwise doors against the outward bursting pressure into their stored position against the interior side wall of the car and at such time, the T-heads travel freely within the bayonet slots. Here I might mention that the outer ends of the pairs of bars 27 and 28 are turned inwardly so that the T -shaped heads are positively; prevented from escaping from the bayonet slots in which they .arereceived and accordingly neither door sections can be removed from the car in any position. In order to prevent grain accumulating on the lower bars 30, I have provided vertical holes 30 at intervals in said bars through which any lodged grain can escape.

The outer end of each door section is provided on its outer face with avertically dis- .posed filler strip 33 which prevents leakage of grain between said end of the section and the adjacent post when the section is in closed "position. In order to insure "of a grain tight6- joint being made between the outer end ofthe door section and the post in the closed position of the section, I have inclined the tracks as indicated at 27 and 28- (see Figure 6) slightly so that as the door sections are being of passed to closed position, such inclined parts vof the tracks will force the T-shaped heads towards theposts and in so doing jam the strips 33 tightly into contact with the posts.

Guiding clips 3 1 are attached to the inner wall of the car to guide the door sections as they are, passed to stored position and to hold them positively against the interior side-wall of the car when stored. 1

Assuming the door sections are in the closedposition as best shown in Figure 4L and that it is desired to release the grain from the car, it is only necessary to release the locking pins and this allows the latches to swingoutwardly and permit the wings 17 to cscape therefrom at which time the doorvsections will simultaneously open under the pressure of the grain, such section's pivoting in "the bearings 31.' Intheir fully open positions,

the said sections will be disposed atright" angles to the car.

When 'itis desired to store the door'sections, the wings 17 are folded back flat against the section 8 and the latches arefolded back against the section 7. The door sec tions are then swung back to the position shown in Figure 4 and are then moved in a direction endwise of the car awayf'rom each other until they are wholly clear of the door- 0 way opening in a position to the inner side of the side wall of the car and as they move 'into such stored position, the heads are travelling in the bayonet slots. r

While I-have entered into a detailed dotscription of the various parts, it will be of course understood that they can be readily modified without departing from the spirit of the inventionas set forth in the appended claims. h v l What I claim as my invention is 1. In a grain door for a grain car, pairs of guiding members secured to the interior wall.

of the car containing the doorway opening and forming upper and lower horizontally disposed key hole slots, a pair of similar door sections adapted to close the doorway opening with their inner ends butted and their outer ends to the inner sides of the posts, heads permanently secured to the outer ends of the sections and slidably received within the key hole slots of the. guiding members, said guiding members and heads being de signed to permit of the out swinging of the door sections under the pressure of the grain Within the car and while retaining the door sections anchored to the car and means for releasably fastening the butted ends of the sections together to withstand the outward pressure of the grain within the car.

2. In a grain door for a grain car, pairs of horizontally disposed spaced tracks secured to the interior wall of the car containing the doorway opening, said tracks providing pivot bearings adjacent the posts, a pair of similar door sections spanning the doorway opening and having their inner ends butted and their outer ends located to the inner sides of the posts, heads secured to the outer ends of the sections and slidably engaging the tracks, said heads and tracks co-acting to form pivots. around which the door sections swing in opening outwardly and while retaining the sections anchored to the car and means for releasably fastening the butted ends of the sections together.

Signed at Portage la Prairie this 26th day of February 1930. V Y

7 ARTHUR B. H. BAKER.

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