US901959A - Grain-door for cars. - Google Patents

Description

J. EDMAN.

GRAIN DOOR FOR CARS. APPLICATION rIL sD MAY 8, 1901.

Patented Oct. 27, 1908.

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GRAIN DOOR FOB. CARS. A'PPLiGATIoN FILED AY 8, 1907.

Patented Oct. 27, 1908.

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J. EDMAN.

GRAIN DOOR FOR CARS. APPLICATION FILED MAY 8, 1907.

901,959. Patented 0011.27 ,1908.

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JOHN EDMAN, or MINNEAPOLIS, MINNESOTA, Assic-Non or ONE-EIGHTH To cHAELEs DAHL, ONE-FOURTH TO ALFRED M. HOVLAND, AND ONE-EIGHTH TO EDWARD e. DAHL, ALL or MINNEAPOLIS, MINNESOTA.

GRAIN-DOOR FOR CARS.

Specification of Letters Patent.

Patented Oct. 27, 1908.

Application filed May 8, 1907. Serial No. 372,494.

to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

My invention has for its object to provide an improved grain door and is especially directed to the improvement of that type of grain door disclosed and claimed in my pending application S. N. 350,361, filed J anuary 2, 1907, entitled Grain door for cars.

The invention consists of the novel devices and combinations of devices hereinafter described and defined in the claims.

In the accompanying drawings which illustrate the invention, like characters indicate like parts. throughout the several views.

Referring to the drawings, Figure 1 is a view in side elevation, showing the central portion of a car having my improved grain door, so-called, applied thereto. Fig. 2 is a vertical section taken on the line a 00 of Fig. 1. Fig. 3 is an enlarged detail in front elevation of certain of the parts shown in Figs. 1 and 6. Fig. 4 is a horizontal section taken on the line :0 m of Fig. 1, some parts being broken away. Fig. 5 is a fragmentary detail partlyin plan and partly in horizontal section, showing the mechanism for operating the door securing devices; and Fig. 6 is a skeleton view in elevation with parts broken away and with some parts sectioned on the line m 00 of Fig. 4.

The numeral 1 indicates the car body having at its sides the usual door openings formed between posts 2. Rigidly secured to the inner edges of the door posts 2 are stop cleats shown as formed by metal plates 3 that extend preferably about half way up on the said posts.

Located adjacent to the inner surface of the door posts 2 and just inward of the stop cleats 3 are vertically disposed oscillatory shafts, shown in the form of tubes 4 and provided with radially extended lock blades 5. The upper ends of these shafts 4 are journaled on bearings 6 secured to the top members 19 on said door sections.

of the door frame and at their lower ends they are provided with rigidly secured sleeves 7 having depending shafts 8 that are journaled in bearing brackets 9 secured to the bottom of the car below the floor thereof.

As best shown in Figs. 5 and 6, the sleeves 7 are formed with projecting arms 10 that are connected by links 11 to the opposite end portions of a lever 12, which latter is intermediately pivoted to a bearing 13 in the bottom of the car below the floor thereof.

One end of the lever 12 is connected by a 'rod 14 to the depending arm 15 of an operating lever 16, which lever is pivoted to a bearing 16 on the under surface of the car floor. The lever 16 is located in a vertical plane adjacent to the outer surface of one of the door posts 2. By means of this lever oscillatory movements of the tubular shafts 4 in reverse directions may be simultaneously imparted thereto.

The numeral 17 indicates the main section of the so-called grain door, which door is of such width that it will swing between the tubular shafts 4 when the said shafts ivhen the operating lever 16 is locked or held in the position shown in Figs. 4 and 6.

To the main section 17 of the grain door a supplemental hinged section 17 a is pivotally connected by a transversely extended hinge rod 18 that is passed through hinge This hinge rod 18 is of greater length than the width of the door opening, and its ends are bent to form eyes 20 that are adapted to slide upon laterally spaced guide rods 21.

These guide rods 21 are provided with vertically extended lower portions, the lower ends of which are rigidly secured to the door posts 2, and they are provided with horizontally extended upper ends which, as shown, are secured to the overhead beams of the car body.

When it is desired to completely close the door opening, an additional part section 17 b is provided. This part section 17 like the door sections 17 and 17 is adapted to be completely closed, so that with a door of this kind an outside car door is not required.

Secured to the inner surface of the upper transverse door of the door frame, is a channel-like door supporting strip 24. Then the door section 17 is not in use, it may be slid upward on the guide rods 23 and its free edge may then be rested upon the upper flange of the supporting strip 24, thereby supporting the said door section in its inoperative position, as shown by dotted lines in Fig. 2, where it is entirely out of the way. When the door sections 17 and 17 are not required in the door opening, they may be moved into inoperative positions and there secured, as shown by dotted lines in Fig. 2 by reference to which it will be seen that the hinge rod 18 has then been slid upward on the guide rods 21, and serves to support the inner portion of the folded door, while the free edge of the door section 17 is supported by engagement with the lower flange of the supporting strip 24.

The door sections 17, 17 and 17 respectively, have secured thereto near their ends, vertically alined metallic lock strips 25, 25 and 25 The lock bar 26 is mounted on the outer surface of the lock blade 5 of each tubular rock shaft 1, and extends approximately from top to bottom of the door opening. These lock bars 26 are connected to the respective lock blades 5 by headed studs 27 on said blades that work through oblique slots 28 in said lock bars 26. These look bars 26 are provided with small obliquely projecting lock bolts or teeth 29 that are adapted to enter through perforations in the adjacent vertically alined lock strips 25, 25 and 25.

hen the lock bars 26 are raised they are, by the slots 28, caused to move laterally toward the cooperating lock strips 25, 25 25 and their bolts or teeth 29 are caused to project through the perforations in the said lock strips. When this is done, it is evident that the grain door can not be raised without raising also the said lock bars 26, and as is evident, the said lock bars are held against further upward movement by the lock blades 5 of the tubular rock shafts to which they are attached.

For the purpose of locking the lock bars 26 in their raised and operative position, I provide so-called lock straps 30 which, at

' their outer ends, are hinged to the adjacent door posts 2 and at their inner ends work between vertically spaced cars 31 on the said lock bars 26 and fit into notches cut in the edges of the adjacent lock strips 25. Lock pins 32 passed through the cars 31 hold the 7 said lock straps 30 interlocked with the said lock blades 5 ofthe rock shafts 4.

Preferably, the grain door is counter balanced in part by a weight 34 which is connected to the lower door section 25 by cables 35 that are arranged to run over guide strips 36 shown as mounted in the exterior of the car body. If desired, the weight may be inclosed in a shield (not shown).

Directing attention again particularly to Fig. 5, it is evident that by extending the arms 10 of the vertical rock shafts 4:, the one inward and the other outward, and directly connecting the same by a rod or link, the intermediate lever 12 might be dispensed with. In this case, however, the connecting rod 14 would preferably be connected directly to one of the arms 10 or to the link or rod used to connect them.

A. grain door of the character above described, as well as the grain door set forth and broadly claimed in my prior application above identified, serves to completely close the door opening and therefore makes unnecessary the use of an outside door. This feature is highly important because first, it saves the cost of an outside grain door, and second, because it simplifies the door mechan- 1s1n.

The construction illustrated in the drawings is especially adapted for application to old cars, or to cars already constructed, and for this reason the pivotally mounted lock blades are located entirely within the door opening, and the door posts are not necessarily cut away to receive them.

What I claim is:

1. The combination with a car body having stop cleats and pivoted lock blades applied tothe sides of the door opening, of a grain door movable laterally through said door opening and adapted to be clamped between said lock blades and stop cleats, co operating lock strips on said grain door and on said lock blades having interlocking parts and one of which lock strips is movable to engage and interlock with the cooperating lock strip, and means for securing said movable lock strips in positions interlocked with the cooperating lock strips, substantially as described.

2. The combination with a car body having stop cleats and pivoted lock blades applied to the sides of the door opening, a grain door made up of sections and adapted to be clamped between said lock blades and stop cleats, perforated lock strips on said door sections, lock strips on said lock blades having lock projections insert-ible through the perforations of the lock strips on said door, an operating lever with connections for imparting reverse oscillatory movements to said look blades, and a lock device operative on said lever to cause the same to hold the look blades in operative positions, and operative on the lock strips of said door and lock blades to hold the same interlocked, substantially as described.

In testimony whereof I afliX my signature in presence of two witnesses.

JOHN EDMAN.

Witnesses:

MALIE HOEL, F. D. MERCHANT.

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