US1240182A - Silo-roof. - Google Patents

Description

F. H. DOUTHI TT. SILO ROOF. APPLICATION FILED OCT- 30. I916.

LMQJSQ. PatentedSspt. 18,191?

2 SHEETS-SHEET1- F. H DOUTHITT. HSILO. ROOF. APPLICATION HLED OCT. 130, i916- PatentedSept. 18, 1917.

2 SHEETSr-SHEET 2.

' FRAnK I-I. DOUTI-IVITT, or CLINTON, IOWA.

To aZZ whom it may concern:

Be itknown that I, FRANK H. Don'rrrrr'r, a citizen of the United States, residing at Clinton, in the county of Clinton and State of Iowa, have invented certain new and useful Improvements in Silo-Roofs, of which the following is a specification.

This invention relates to silo roofs and is designed to provide a simple. and eflicient roof structure of theopening type wherein the roof sections, while in their open position, may constitute additions ,to the silo :body itself to increase the-capacity of 'the same during the time it is being filled withv en silage I r Among the principal objects of-this invention,is a structure whereby thevarious sections may besupported to constitute a closed roof without thenecessity of resorting to the use of rafters or to a permanent center post construction. Additionally, the invention also consists in a structure whereby the lower or'bottom edges of the roof maybe contracted or expanded to accommodate silos varying somewhatboth in size and in contour in plan, the tops of each of the roof sections being connected to cooperate with this contraction and expansion so that the peak or crown portion of the roof is adjustable to assume various heights;

A further object .ofthe invention resides in a structure for supporting the roof hinge members from the silo body so that they will be permanently kept in position once they are applied.

Other improved features of this invention will become more apparent after a detailed I description of the accompanying sheets of drawings, in which similar characters of reference designate corresponding parts, and inwhich:

Figure 1 shows the upper portion of a silo in vertical section with my improved type of roof applied thereto and shown in open position,

Fig. 2 is a top plan View of the structure shown in Fig. 1, i

Fig. 3 shows the upper end of a silo in side elevation with my roof applied thereto and shown in closed position,

Fig. 4 is a section illustrating two diametrically opposed sections only,

Fig. 5 is an inside face view of one of the roof sections and,

Fig. 6 is an edge viewlookingfrom the rear of one of the roof sections.

In these several views, the tank or silo body is designated by the reference numeral 1 and to the upper edge of this tank there are secured a pluralit of substantially U- shaped bracket members 2. Each bracket member is provided with an inside leg 3 carrying the set screw 1, whereby the device may be temporarily attached to a silo and an outside leg 5 provided with a stirrup ,6 at its lower end. Each U-shaped member also carries an upwardly inclined pierced ear shown at 7, which ears cooperate with I Specification of Letters ZPatent. Patentedsept. 18, 1917.

Application filed October 30, 1916. Serial No. 128,364.

anchor rods 8 carried by each of the roof sections 9 to form hinge and supporting structures. The U-shaped bracket members 2 are temporarily applied to the silo by means of the set screw 4 and after all have been properly positioned, they are permanently held in place by means of a band shown at 10 and also shown as being located between the lower edge of the pierced ear portion 7 and the stirrup 6. This band extends circumferentially about the tank in the manner described and is adjusted to proper size by means of the bolt and nut structure shown at 11 as passing through the outturned ends 12 of the band. Each roof section is formed of a converging or triangularly shapedmetal plate secured to the top side of an angle iron frame section 13. Each frame section is provided with a cross 3 piece 1 1 and it is by means of this cross piece and the end piece 15 of the frame 13, that the anchor rods 8 are supported in position. The-end'of each anchor rod isthreaded as is shown and rigidly held in position by drawing the nuts 16 into holding engagementwith the end piece 15, the pierced ears 7 engaging the anchor rods between the cross pieces lt and 15, as is shown. Each anchor rod is also provided with a set collar shown at 17 and it is by means of these set collars that'the roof sections are adjusted to their positions as will be presently related.

The upper ends of each of the roof sections is provided with a V-shaped bracket member shown at 18, one leg of each of which is provided with a slotted opening 19. To one of these brackets there is rigidly attached a ring member 20 provided with a series of holes corresponding in number with the number of roof sections, it being the purpose of this ring to rigidly secure the top ends of the roof sections together by means of the bolt and nut structures 21 passing through the aperture in the ring member 20 and the slotted openings 19 of the brackets 18. In order to further secure the parts in position, the ring member is provided with a horizontal base piece 22 through which a cap bolt 23 is designed to pass. This cap bolt carries the conical cap 24: at its upper end and this cap securely fits over the peak or crown portion of the assembled'roof sections and is rigidly held in position by tightening of the nut 25 on the lower end of the bolt 23. T

The manner of assembling my roof is as follows: The clamp members 2 are all properly located and the anchor rods 8 caused to pass through the pierced ear portions 7. The section 9 carrying the supporting ring 20 is first placed in position and then the section diametrically opposite is placed in position and the parts united by means of the bolt and nut structures 21, The set collars 17 are then moved to their proper positions tocooperate with the pierced ears 7 to prevent the sections from expanding after these sections have been properly adjusted according tothe size and shape of the silo itself. The remaining sections arev then placed in position in the same manner. Should the silo vary slightly in size, or be larger than standard size, the roof sections may be expanded by moving the set collars 17 upwardly on the anchor rods 8, which correspondinglylowers the peak or crown portion of the roof sections. This lowering of the top of the peak portion of the roof is permitted because of the absence of any rafters andbecause' of the elongation or contraction of the effective length of the bolt 23, which effective length is measured between the cap 24L and thecross piece 22 of the supporting ring 21. Further, should certain of the sections be warped or bent, so that they do not properly overlap, this overlapping may be adjusted by adjusting the tops of the sections through their slotted connection 19 with the] supporting ring 21 until the proper closure is had. In opening, should it be desired to have the sections dropped parallel with the sides of the silo, as indicated in Fig. 1, this may be effected by correspondingly adjusting the set collars 17, as is shown in this figure. Sometimes, this is deemed desirable in order to reduce the wind surface or for any number of other reasons well known.

After the sections have been moved to opening position, they may be positively held in such position by means of the locking bars 26 centrally pivoted at27 one to each section, as is shown. WVhen the sections are moved to open position, these locking bars may be swung to assume a horizontal position and inasmuch as they are of such length that their ends overlap slightly, they present an annular band and the overlapping ends may be locked in such position by means of the U-shaped bolts shown at said supporting means, and means for giving the proper support to the top of said sections. j

2. In a silo, a plurality of converging roof sections, an anchor rod extending longitudinally of each of said sections, supporting means for securing said sections to the upper edge of a silo by means of said rods, a collar adjustably carried by each rod to cooperate with said supporting means to hold the sections in proper position, and means for givingthe said sections. 7 4

3. Ina silo, a plurality of converging roof sections, an anchor rodextending longitudiproper support to the top of nally of each of said sections, supporting means for securing said sections tothe upper edge ofa silo by means of said rods, adjustment means cooperating with said rods and said supporting means to permit the adjustment of said rods in said supporting means, and means for adjustably supporting the tops'of said sections to permit their assuming'various heights as their bottoms are expanded or'contracted by movement of said anchor rods through their supporting means.

4. In a silo, a plurality of converging roof sections, means for adjustably supporting the lower ends of said sections from the upper edge of a silo so that said sections may be expanded or contracted, and adjustment means for supporting the tops-of said sections to permit their individual adjustment to permit their assumlng various heights as their bottoms are expanded or contracted.

5. In a s1lo, a plurallty of converging roof sections, means for adj ustably supportingthe lower ends of said sections from the upper edge of a silo so that said sections may be ex? panded or contracted, a ring member to which the upper ends of said sections are attached, and means whereby the upper ends of said sections may be adjustably connected to said ring to permit their assuming various heights. I V

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

FRANK H. DOUTHITT- Witnesses WV. H. BOYLE, R. W. WIoKs.

Gojies of this patent may-be obtained for fi've cents each, by addressing the Commissioner of Patents,

Washington, D. 0.

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