US1243829A - Silo-door. - Google Patents

Description

1. R. FREEZE.

SILO DOOR.

APPLICATION FILED NOV. 21v 1916. v

Patented Oct. 23,1917.

2 SHEETSSHEET 2- Inventor Jab/7mm Iii fieeze Attorney JONATHAN B. -IREEZE, OF MIDDLETOWN, OHIO, ASSIGNOB, BY MESNE ASSIGNMENTS,

'l'0 IKE AMERICAN ROLLING MILL COMPANY, OF MIDDLE'IOWN, OHIO, A CORPORA- rroaw or care,

SEQ-DOOR.

' Patented Oct. 23, 11.917.

, Application filed Novemberm, 1816. Serial No. 18%,695.

To all whom it air/a3 v concern Be it known that I, J OHNATHAN R FPEEZE, a citizen of the United States, res1d1ng at Middletown, Butler county, Ohio, have mvented certain new and useful Improvements in Silo-Doors,'of which the following is a specification.

ThlS improvement pertains to $11.0 doors and, while it is suitable for a variety of structures of various forms it has been devised with special reference to the shells of Fig. 4 a similar vertical section of portions of the structure in the plane of line b of Figs. 1 and 2: and

Fig. 5 a horizontal section of portions of the structure in the plane of line 0 of Fig. 1.

A diversity of scales is employed in the drawings.

In the drawings 1,v illustrates a portion of the shell of a sheet metal silo of circular plan:

2, the door-opening therein, illustrated as :being rectangular: v

3, horizontal bars of Z-shaped cross-section riveted to the shell, one bar at the upper margin and 'one at the lower margin of the dooropening, thesebars forming grooves at the top and bottom of. the dooropening, one groove opening downwardly and the other groove opening upwardly, the

'width of the grooves tapering from one end of the doorway to the other:

4, Z-shaped bars riveted to the shell and forming prolongations at the wide ends of the grooves which have been referred to:

5, a Z-shaped bar riveted to the shell at that margin of the door-opening corresponding with the narrow ends of the grooves formed by the bars 3, this vertlcal Z-bar forming a vertical groove at the end of the door-openmg:

6 a notch cut in the inwardly ro'ectin fia ige of the Z-bar' 5: p 1 g 7, the door, which is formed of sheet metal of a size to cover the door-opening and extend vertically from the floor of the-bottom groove to the roofof the top groove, this door being curved to fit against the outer surface of the shell at the margins of the door-opening:

, srarns PA EW- m I 8, an outwardly projecting roll formed by I curling that one of the vertical edges of the door corresponding with the wide ends of the horizontal grooves in which the door slides:

9, a similar roll formed at the opposite .side edge of the door:

10, ladder-rounds riveted to the outer face of the doorzand 11, channel-bars, with their channels fac-' ing outwardly, riveted to the outer surface of the door at its upper and lower edges,

- these bars being tapered to correspond with the taper of the grooves formed by the bars 3, and of such dimensions that when the door is slid shut they fill the grooves at the top and bottom of the doorwa Assume the door to he slid i hlly open and to be supported by the ooves in bars 4. The bars 4 thus prevent t e falling away of the door, and if there is no objection to the door becoming separated from the shell when the door is open then the bars 4 need not be provided.

When the door is pushed to the left to the fully closed position, the channel-bars have a wedging fit in the upper and lower grooves and cause the door against the shell.

The rolls 8 and 9 stiffen the vertical edges of the door and the vertical Z-bar 5 stifi'ens one of the vertical margins of the doorway, and, when the door is pushed to closed position, roll 9 becomes housed within vertical Z-bar 5 and premed to the shell.

to be tightly pressed.

- It is preferred that the door fit rather open.

In silos it is highly desirable to avoid interior projections and in the present case projections are avoided by countersinks at L'In a door, the combination of a shell 'rovided with a rectangular door-opening, liorizontal bars secured to the shell in front of the upper and lower margins of the dooropening, and forming Walls closer to the shell at one end than at the other whereby the,

upper and lower margins of the door-opening become provided with tapering grooves facing toward each other, a door adapted to close the opening and having its horizontal edges slidable in said grooves, and tapering members provided at the horizontal margins of the door and adapted to tightly fill said grooves when the door is pushed to closed position, substantially as set forth.

2. A structure as specified in claim 1 when the grooves are formed of tapering Z-shaped bars secured to the shell at the horizontalmargins of the door-opening, substantially as set forth.

3. A structure as specified in claim 2 in combination with Z-shaped bars secured to the shell and forming endwise prolongations of the grooves at their wider ends beyond the side margin of the door-opening, substantially as set forth.

4. A structure as specified in claim 1 in combination with a roll formed at each verof the door, substantially as set forth.

6. A structure as specified in claim 1 in combination with a vertical member carried by the shell at the closing margin of the door and forming an inwardly open groove, and a roll formed on the closing vertical edge of the door and having its ends engage said horizontal grooves and adapted to enter the vertical groove, substantially as setforth.

7. A structure as specified in claim 6 when the outer wall of said vertical groove is notched to permit access of a tool to the roll when the door is closed, substantially as set forth.

J OHNATHAN R. FREEZE.

Witnesses:

E. H; VVUERDEMAN, C. W. SQHUELLER.

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