US1129436A - Silo. - Google Patents

Description

B. S. WILLIAMS.

SILO.

APPLIOATION FILED DBO. 6. 1913.

1 19 1; Patented Feb.23, 1915.

THE NORRIS PETERS'CO. PHDTO-LITHQ. WASHINGTON. D. C

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BENNETT S. "WILLIAMS, OF KNOXVILLE, TENNESSEE.

SILO.

1,1aa1ae.

Specification of Letters Patent.

Patented 111310.23, 1a1s.

Application filed December 5, 1913. Serial No. 804,859.

To all whom it may concern:

Be it known that I, BENNETT S. WILLIAMS, a citizen of the United States,residing at Knoxville, in the county of Knox and State of Tennessee, have invented a new and use:

ful Improvement in Silos, of which the following is a specification, reference being had to the accompanying drawing.

My improvement relates particularly to silo doors, the improvement being applicable to various forms of silos.

The object of the improvement is to provide a silo door which comprises eflicient and cheap means for supporting and securing the door.

In the accompanying drawings, Figure 1 is an elevation of a silo including a door, embodying my improvement; Fig. 2 is a section on the line, 2-2, of Fig. 1; Fig. 3 is a section on the line, 33, of Fig. 1, looking toward the right; Fig. l is a section on the line, ll, of Fig. 1; Fig. 5 is a plan of two hinge members; Fig. 6 is an elevation of said hinge members.

Referring to said drawings, A is the wall of the silo, and B is the door casing secured to the wall around the opening which is to receive the door.

C is the body of the door. This is of proper form to fit into the casing, 13, from the inside of the silo in the usual manner.

Any desired number of hinges, D, are applied to the casing and one upright edge of the door to permit the latter to swing inward. The member, 1, of the hinges has a pintle, 2, extending into a barrel, 3, on the member, 4, of the hinge. Said barrel is elongated in cross-section in a direction parallel to the member, 4c, as shown in Figs. 4: and 5. The purpose of such enlargement of said barrel is to allow sufficient play to co1npensate for warping, swelling or shrinking of the door or the door casing.

On the outer face of the door'and at each upright edge thereof is a bearing, 5, in which rests a journal, 6, of a crank member, E. Said bearings are secured to said door in any suitable manner, as by means of screws, 7. Outside of each bearmg, 5, said crank member, E, has a rearward-directed arm, 8, on which is a downward extension, 9. The rear, upper portion of each arm, 8, is made angular to adapt said arm to act as a cam. Said arm and said extension bear against a metal face plate, 10, secured to the outer face of the casing, B, behind said cams and horizontally opposite the bearings, 5. The arms, 8, extend far enough rearward from the journals, 6, to cause firm pressure by said arms upon the face plates, 10, when the crank, 11, of the crank member, E, is turned into the horizontal position, the position shown in Figs. 1, 2 and 3. The extension, 9, prevents said crank from moving downward farther than the horizontal position. When said crank is turned upward, the arms, 8, 8, are moved'downward and forward out of engagement with the face plates, 10, whereby the door is released.

When the door is closed and secured, as shown in Figs. 1, 2 and 3, there is a space between the crank, 11, and the right hand bearing, 5, and also between the left hand arm, 8, and the left hand bearing, 5, as shown in Figs. 1 and 2. This involves making the crank narrower than the space between the bearings and placing the left hand bearing a short distance rightward from the left hand edge of the door. The purpose of this arrangement is to permit shifting the entire crank member rightward after it has been turned to bring the crank, 11, into the upright position, such rightward shifting being sufficient to make the left hand end of the crank member clear the adjacent door casing, B, to permit the door to swing inward for opening it.

When the door is to be closed, the crank member is turned to bring the crank into the upright position and the crank member is then shifted manually toward the right, if it is not already so. The door is then drawn outward into the closed position. Then the crank member, E, is manually shifted bodily leftward until the arm, 8, and extension, 9, stand in front of the adjacent portion of the casing, 13. Then the crank, 11, is turned downward, whereby the arms, 8, and extension, 9, are forced against the casing, B, which action draws the door forcibly outward. It is to be observed that the crank member is shifted endwise only when it is free from the silo wall. The metal face plates, 10, are used because they are harder than is the wood of which the casing, B, is usually made, and said plates are to be regarded as a part of the casing or silo wall. The crank, 11, constitutes a ladder step or rung, the downward movement of the crank being arrested when the extension, 9, bears against the plates, 10. Any desired number of such doors may be placed one above the other or in any other arrangement.

I claim as my invention:

In a silo having a door opening, a door fitting into said opening from one side of the silo wall, bearings on one face of the door, a rigid crank member having journals resting in and endwise shiftable in said bearings and having a crank between said bearings narrower than the space between said bearings, whereby said crank member is made manually shiftable endWise in said bearings, and said crank member having arms at its outer ends separated from each other a distance equal to the distance between two outer bearing faces located at opposite sides of and adjacent the door opening, substantially as described.

In testimony whereof I have signed my name, in presence oi. two witnesses, this 3rd day of December, in the year one thousand nine hundred and thirteen.

BENNETT S. WILLIAMS.

'Witnesses:

CYRUS Kai-In, Roy A. JOHNSTON.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner 01 Patents,

Washington, D. G.

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