US802391A - Silo. - Google Patents

Description

PATBNTEB 00T. 20, 1905.

W. L. HAAG.,

SILO.

APPLIUATION FILED rmx. 0. 1004.

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IINITFD STATES PATENT OFFICE.

SILO.

Specification of Letters Patent.

Patented Oct. 24, 1905.

Application filed February 8, 1904. Serial No. 192,688.

Beit known that I, IVILLIAM L. HAAG, a citi- Zen of the United States, residing at Lansing, in the county of Ingham and State of Michigan, have inventedcertain new and useful Improvements in Silos, of which the following' is a specification, reference being' had therein to the accompanying drawings.

The invention relates to new and useful improvements in silos; and it consists in the peculiar construction of the tank, having a continuous doorway at one side thereof and in the construction of the braces for the doorway so arranged that when combined with the door and placed upon the inside of the tank or silo it may form a ladder' by which any person desiring to ascend to the top of the silo may climb.

The invention further consists in the peculiar construction, arrangement, and combination of the various parts, all as more fully hereinafter described.

In the drawings, Figure l is is aside elevation of a portion of the silo, illustrating my invention as applied thereto. Fig. 2 is a cross-section thereof on line a' rc of Fig. l. Fig. 3 is a plan View of the parts detached.

In the present state of the art in the manufacture of silos it is customary to build a circular tank, the staves of which are held together by hoops, and provide an opening at one side thereof closed by doors, which may be removed when the contents are desired to be taken out. In the ordinary construction of tank it has been found desirable also to put posts upon each side of the doorway for reinforcements, these posts projecting out beyond the surface of the side of the tank and the door, fitting' in flush with the side walls of the tank, and if cross-bars were placed between the reinforcements they might be used for a ladder to ascend the tank. With my invention the tank is made of staves of uniform width, and no reinforcement is applied at the sides of the door; but the door instead of being placed flush with the staves of the tank is placed inside of the same, so that the hoops or bars which extend along the outer face of the tank will be spaced from the door sufficiently so that they may still be employed as a ladder.

A represents the staves of a circular tank which is designed to be used as a silo.

B represents the hoops, which I prefer to make continuous in the usual way of applying hoops to continuous circular tanks.

At one point in the circumference of the tank I leave out two or more staves to'form a doorway, (indidated at C.) To prevent the stavesat this point from loosening, and thus collapsing the entire structure, I place braces between the staves D at each side of the dooropening, and these braces I preferably make of a strip of band-iron E, secured at its ends to the side staves D-as, for instance, lby bolts F-and having lugs G at either side secured, as by rivets H, to the brace-strip and projecting across the face of the side staves D, as plainly shown in Fig. 2.

I prefer to place the hoops B centrally of the brace-strap E, as shown in Fig. l, and by having the rivets H in the upper and lower surface the hoops may be placed between these two series and also between the bolts F, which are arranged above and below the hoops, so as to prevent any possibility of the dislodgment of the hoop at this point.

I is a door, which I have shown as an ordinary wooden door, made of boards secured together by the cleats J. This door preferably has ehamfered end portions K, at which point I preferably place packing L on the chamfered faces, so as to be sure to make a tight joint between the door and the inner face of the tank. In this form of my invention the door abuts against the inner face of the staves, leaving the bars E and the hoop spaced from the door the thickness of ,the staves D, thus giving ample room for the hands and feet of the person who desires to climb up the silo, using the bars or hoops as the rounds of a ladder. I may keep the door in position in any suitable manner. I have shown turn-buttons or levers M upon the sides of the cleats J, adapted to engage the outer wall of the tank for securing it in position, and I have also shown the hooks O on the outer face of each door adapted to rest upon the upper edges of the braces. As is customary in these devices, one door may rest upon the next lower one, so that the lugs O are not essential, and the doors may be placed in position from the bottom upward, and of course the lower door would rest upon the foundation. I may, and preferably do, form a tongue-and-groove connection between the meeting ends of the doors, asis usual in this IOC IIO

one side, the side posts of which are the adjacent staves, a plurality of straight braces extending across the door-opening and having their ends curved to conform to the curvature of the body and bolted thereto, angular lugs secured to the inner faces of said braces and engaging the edges of the staves adjacent the door-opening, hoops having portions extending across the braces and lying thereon, a plurality of door-sections of a width greater than the width of the door-opening and having chamfered end portions adapted to lie directly against the inner faces of the staves adjacent the door-opening, hooks secured to each of said door-sections and adapted to overlie the brace adjacent thereto, and means for clamping the door-sections in the dooropening.

2. In a silo the combination of a body part formed of staves having an opening therein extending substantially the length thereof, of straight brace-strips spanning the opening and having their ends curved to conform to the curvature of the body, bolts passing through the curved portions for securing the braces in place, hoops surrounding the body and passing over the braces and between the boltwheads` angular lugs secured to the inner faces of the braces and engaging the sides of the walls of the door-opening, and door-sections having inclined bearing-surfaces at opposite ends bearing directly against the inner surfaces of the staves adjacent the dooropening.

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

VILLIAM L. HAAG.

I/Vitnesses:

' J. EDWARD REED,

C. J. DAVIS.

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