US1106662A - Silo-door. - Google Patents

Description

J. H. MAYER.

SILO DOOR.

APPLICATION FILED 111,113.17, 1913.

Patented Aug. 11, 1914.

A TTORNEYfi THE NORRIS PETERS (0. PHUTO-LITHOH WASHINGTON. D.

n'nmnn swans arenas JOHN HENRY IVIAYEE, OF HUMBOLDT, IOWA, ASSIGNGB TO HUMBOLDT CEMENT PROD UC'IS MFG. (10., OF HUMBOLDT, IO'W'A, A CORPORATION ()F IO'WA.

SILO-DOOR.

nice-nee.

Specification of Letters Iatent.

Patented An 11, 1914.

To all whom it may concern:

Be it known that 1, JOHN HENRY h lAYnR, a citizen of the United States, residing at Humboldt, in the county of Humboldt and fate of Iowa, have invented a certain new and useful Silo-Door, of which the following is a specification.

The object of my invention is to provlde a simple and inexpensive door for silos made up of a number of independent sections arranged so that by inovlng these sectlons downwardly to their closed positions they will be drawn inwardly and held in close engagement against the door frame and against each other.

A further object is to provide a door for silos wherein the sections may, by raising them a slight distance, be swung to a substantially horizontal position to thereby provide a chute for use in emptying the silo of its contents.

My invention consists in certain details, in the construction, arrangement and combination of the various parts of the device, whereby the objects contemplated are attained. as hereinafter more fully set forth, pointed out in my claims and illustrated in the accompanying drawings, in wlnch:

Figure 1 shows an elevation of a portion of a silo provided with my improved door. Fig. 2 shows a vertical, central, sectional view of a silo embodying my invention taken through the center of the door. Fig. 3 shows a horizontal, sectional view of a portion of a silo with my improved door fitted therein, and Fig. 4 shows a detail, sectional view of a portion of a door frame illustrating the means employed by me for holding the door in closed position.

Referring now in detail to the accompanying drawings, 1 have used the reference numeral to indicate-a silo, 11 a door frame and 12' the horizontal braces extending across the door opening. These are all beveled upper and lower edges 16. Secured to each of the door sections near its lower end is a pair of hooked-shaped arms 17, each comprising an outwardly extend- 111g portion 18 rigidly secured to the door section and. a downwardly extending portion 19. The downwardly extending portion 19 is preferably curved in an outward direction, as clearly shown in Fig. 4, so that in moving the door section downwardly to its closed position, the downwardly extendportion of said hook will engage the adjacent horizontal rod 12 and thereby draw the door section tightly against the door frame. The relative positions of the door sections and slots are such that the lower end of each door section passes over one pair of the slots and terminates a slight distance below, while the upper end of the door section terminates immediately below the next slot above. For convenience the door sections may be provided with suitable handles 20.

In fitting the door sections into position in the door opening, they are first arranged across the opening with their edges engaging the inside edges of the cleats 13. In moving them to their closed positions they are pushed downwardly along the door frame until the hooks on each of said door sections engage the proper one of the horizontal braces 12. On account of the shape of the portion 19 of each of the hooks the lower ends of the doorsections will be drawn tightly against the door frame and on account of the beveled upper and lower edges of each of the door sections, the section immediately above any one of the other sections will draw the top portion of that section tightly against the door frame. In this manner a relatively tight closure of the door opening will be effected.

In emptying the silo of its contents each of the door sections may be lifted upwardly a slight distance as the ensilage is removed from around it and when the lower edge of any one of the door sections is moved to a position in line with the adjacent slots, the top of that door section may be moved i11- wardly and the entire door section will then swing to a substantially horizontal position, as shown in dotted lines in Fig. 2. In this position the door section may be advantageously used as a chute in removing the contents of the silo. This arrangement when used in connection with large silos will effect a considerable saving of labor in emptying the contents thereof.

I desire particularly to emphasize the advantages of the hooleshaped arm employed in my device, for by this means the doors are-clamped tightly against the door frame and against each other and held in this po sition.

I claim as my invention:

1. In a device of the class described, a silo having a vertical door opening, vertical frame members in said opening provided with a plurality of pairs of opposite slots inclined from the front edge of the door outwardly and downwardly, a plurality of door sect-ions designed to fill said door open-' ing, each of said sections being arranged to have its lower ei'id-received in one pair of; said slots so that the door is inclined upwardly and inwardly from the opening to form a chute, and means for holding the door sections in their-last named positions. z. In a device of the class described, a silo having a vertical door opening, vertical frame members in said opening provided with a plurality of pairs ofropposite slots inclined from the front edge of the door outwardlyand downwardly, a plurality of door sections'designed to fill said door opening, each of said sections being arranged to have its lower end received in one pair of said slots so that the door is inclined upwardly and inwardly from the opening to form a chute, and means for holding said door sections in their closed and in their last named positions.

3. In a device of the class described, a silo having a vertical door opening provided with upright frame members at its sides, said frame members being provided with a plurality of opposite pairs of slots inclined from the front of the door frame downwardly and outwardly, a horizontal rod connecting the upright members just above each of the pairs of slots, a plurality of door sections for closing said door opening, inwardly extending hook members arranged 1 j on the lower part of each door section in a horizontal line, each-comprising a horizontal portion mounted in the door section and a downwardly and outwardly curved portion formed on the inner end of the horizontal i Sopies of this patent may be obtained purposes stated. 7 V I n JOHN HENRY portion, said hook members being designed to extend over and engage the rods when the doors are in vertical, closed positiom s aid said doors in position inclined upwardly and outwardly from the door opening, substan-tially as descrlbed.

4. In a device of the class described, the comblnatlon of a sllo having a vertical door opening therein, a frame'for said door opening provided at intervals withhorizontal rods and having a plurality of oppositely arranged inclined slots formed in the parallel'faces thereof, to receive the side edges of a door section, a-plurality of door sections arranged'in said opening with their vertical edges restingagainst the inside surface of said door frame, and hook-shaped arms on each sectionnear the lower edge thereof for engaging said ho 'izontal rods to thereby hold sald-door sections in closed position, or

in position with the door edges received in V a pair of said slots.

5. In adevice of the class described, the combination-of a SllO havinga vertical dooropenlng therein, a frame for sald door open-" ing provided at intervals with horizontal rodsand havin a plurality of oppositely arranged slots f brmed in the parallel faces thereof, a plurality of door sectionsxprovided with beveled upper and lower edges arranged in saldadoor frame, and hookshapecl arms on each of said door sections,

each comprising an outwardly extending POI'ilOIl rigidly secured to the lower portion of the doorsection, and a downwardly extending port-ion curved outwardly to engage the adjacent horizontal-rod and draw said doorsection tightly against the door frame as the section is moved downwardly, said oppositely arranged slots 1n the doorframe being so positionedithat' by raising thedoor sections a slight distance upwardly they a ,may be swung on said horizontal rods to a100 substantially horizontal position, for the Witnesses :j Y

S. G. VVINNE, J, E. Banirnn. I

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