US540851A

US540851A - Grain-door for cars

Info

Publication number: US540851A
Authority: US
Publication date: 1895-06-11
Anticipated expiration: 1912-06-11

Description

(No Model.) 2 Sheets-Sheet 1. E.A. BURRAGE.

GRAIN DOOR FOR GARS. No.,540,851. Patented. June 11,1895

(No Model.) 2 Sheets-Sheet 2.

E. A. BURRAGE. 5111.111 11003 FOR 011115.

No. 540,851. Patented June 11, 1895.

UNITED STATES PATENT OFFICE.

EDWIN A. BURRAGE, OF MINNEAPOLIS, MINNESOTA.

GRAIN-DOOR FOR CARS.

SPECIFICATION forming part of Letters Iatent N 0. 540,851, dated June 11,1895.

Application filed September 20, 1894. Serial No. 523,550. (No model.)

To all whom, it may concern:

Be it known that I, EDWIN AIBURRAGE, a

- citizen of the United States, residing at Minneapolis, in the county of Hennepin and State of Minnesota, have invented certain new and useful Improvements in Grain-Doors for Cars; and I do hereby declare the following 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 relates to grain-doors for cars; and has for its object to provide a graindoor of simple construction, which shall be eflicient and serviceable for the purposes had in view.

To this end my invention consists in the novel features of construction hereinafter fully described, and defined in the claim.

My invention is illustrated in the accompanying-drawings, wherein, like letters referring to like parts Figure 1 is a side elevation ofa part of a car-body having my grain-door in working position thereon. Fig. 2 is a horizontal section on the line X X of Fig. 1. Fig. 3 is an inside elevation of the door detached. Fig. 4 is a detail in inside elevation showing the device for temporarily holding the door in position until the pressure of the grain becomes available thereon, and Fig. 5 is a detail looking at the same parts shown in Fig. 4. on the sectionline X X.

or represents the car-body and a the cardoor openings therein. To the door-posts a I fix angle-iron jams a to receive the ends of the grain-door and prevent the lengthwise movement thereof when in working position.

The grain-door is composed of two sections 1) b, which are pivotally connected, on the center line of the door, by a three-leaf double will be noted that the sections 0 c c of this hinge are secured together by vertical pivots, the centers of which are located inward of the leaves of said hinge and faces of the ing bar (1 carried by one of the door sections and-having arms 01, which engage with suitable detents on the other door section. As shown, the bar 61 is mounted in staple-like keepers d fixed to the door section b; and the transverse arms (1 are of hook-like form, and the outer or angular portions thereof engage -with corresponding stapledike keepers or detents d carried on the door section b. .When the door is in working position, as shown in Figs. 1 and 2, the locking device above described, will hold the door sections rigidly to- .gether and in line with each other, with a ure of the grain becomes available, bottom lugs f may be provided, in the form of rollers or otherwise, and top catches f may be pivoted to the door jambs or door-posts, and be made to engage with the upper edge of the door. Turn-buttons f may be provided, for holding the hook-like catches f in position.

The locking-bar d is extended downward to a point near to but stopping short of the car floor, when in its locking position; and hence a crow-bar may be readily applied to raise the said bar, whenever desired, by using the threshold of the car-door opening as a fulcrum. To prevent the chafing of the door sections b b, by the sliding lock (1 d and the application of the crow-bar, the door sections are provided with vertical metallic strips or battens d Then the sliding bar at d is raised to its uppermost position, it is of course obvious that the door sections will turn freely on their central hinge, thereby permitting the center of the door to move outward,under the pressure of the grain from within. Otherwise stated, the opening and removal of the graindoor will be automatic when thelock is thrown into its releasing position.

When not in use, the two door sections may be folded together, so as to occnpybut little ICO permanently attached grain-door.

The trussing-lock herein is similar in principle to the lock, for grain doors, disclosed in my pending application, Serial No. 506,231, filed March 3, 1894:, wherein broad claims to The said lock, as

the same will be found.

herein shown, however, Works as a part of a new combination which is herein claimed.

What I claim, and desire to secure by Letters Patent of the United States, is as follows:

The combination with the pair of door-sections, of the three-leaf hinge secured to the inside of said sections, overlapping the central joint, and constructed to permit the said door sections to be folded together backward, and the vertical sliding lock, carried by one of said sections, and provided with arms engageable with detents carried by the other of said sections, substantially as described.

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

EDWIN A. BURRAGE. Witnesses:

J AS. F. WILLIAMSON, EMMA F. ELMORE.