US1056289A - Silo. - Google Patents

Description

' SILO. 'APPLIOATIQN FILED mha, 1912.

Patented Mar, 18, 1913.

UNITED STATES PATENT QFFICE.

'FRED JQMCARTHUR, or ABERDEEN, SOUTH DAKOTA.

srLo.

lSpecification of Letters Patent.

Patented Mar. 18, 1913.

Application fil-ed March `8, 1912. Serial No. 682,441.

'of South Dakota, have invented certain new and useful Improvements in-Silos, ofwhich the following is a specification.

My invention relates to silos and more especially to 'that feature of silo construction which involvesthe use o f a continuous door opening and reinforcing members for `holding the silo in position andtaking up the shrinkage when necessary.

In silos of the type to which my improve- 1`5 ments are applied, it generally happens that after the silo is constructed, perhaps after icing emptied the first time, there will be' a `:onsiderable vamount of shrinkage of the staves which will have to be taken up by means of the circumferential reinforcing rods or the silo may become so loose as to collapse. Also after filling, on account of swelling, the reinforcing bands may need to be loosenedto permit expansion of the circular silo walls or said bands might be brokem In connection with this reinforcement rvarious devices have been employed for preventing collapsing of the silo at the door opening and retaining said door open- 80 ing in normal position, a common device for this purpose being to provide a special reinforced -door frame with cross braces eX- tending between the frame members, the 'reinforcing hoops being extended over said frame members so that when the hoops are drawn up the frame members will be forced against the cross bars. This form of 'silo necessitates a special door frame which is expensive 'and difficult to assemble. It is 40 the object of my invention to provide a reinforcement in connection with a continuous door opening which shall do away with the special door frame and also the crossI braces, and yet will hold the said members of the door opening in proper relative position.

The full objects and-advantages of my invention will appear in connection with the detailed description. thereof and are particularly' pointed out in the claims.

In the drawings, illustrating the applica tion of my invention in one form, Figure 1 is an elevation view of .a silo embodying my invention. Figs. 2 and 3, inclusive, are detail views of securing lugs to oeV used inconnection with the reinforcement ernployed. Fig. 4 is a fragmentary sectional plan illustrating the door structure.

In the view shown in Fig. A1 is represented a silo composed of staves 10 of the ordinary type, that is, tongue and groove staves, which may be set upon end on a foundation of usual construction.v

Reinforcing rods 25 extend, centrally into two eye pieces 26 to which they are secured vby means of nuts 27, as most clearly shown in Fig. 2. The eye pieces 26are provided with three apertures, and extending through the two terminalv apertures are- short rod connections 28 and 29 which may be headed at the ends, as shown. The short sections 28 each exten'd' from eye pieces 26 entirely across the door opening 15, being secured through eye pieces 30, the headed ends of these sections preventing the same -from slipping out of the apertures in either- eye pieces 26 or 30. The reinforcing sections 29 extend from the eye pieces 26 to the eye pieces 30 without crossing the door opening 15. lt follows, therefore, that when, by means of niits 27 or other tightening lugs. 19 of usual construction on the same, the rods 25 are drawn up their action will be to pull the staves 10 together, but since the marginal staves 14 and 18 have this pull eX- erted upon them equally at the same time in opposite directions through the rod sections 28 and 29, this will result in holdingV the vmarginal staves 14 and 18 in fixed relative positions quite as eifectively as if a special door frame structure and cross braces were employed in combination with the usual hoop reinforcement.

lt will be obvious that my silo can be constructed much more cheaply than the frame type of silo and will not require any.-

specially skilled labor in setting it up. The door structure employed by me is illustrated in Fig. 4, in which the doors 31 are simply formed with curved engaging portions 32 adjacent the margins so .that when said doors are set one upon the other within the silo the said curved portions 32 will come against t-he inside of the marginal staves 14 and 18 and the pressure of the silage against the door will seal the same. If' desired, a strip '33 of rubber. felt or other fabric may be employed between the surfaces 32 and the terminal staves 14 and 18.

The reinforcing bands 2.5 may each be formed of as many rod sections as is desirable with tightening lugs connecting said sections so that thel may be tightened as necessity may require trom all sides of the silo. The tightening lugs may all be secured to stares Yotfthe silo, in i'vhich case lt Will be noted that l have shown the reinforcing bands which cross the door opening; ls being' secured to the marginal sta'ves at the sides ot the door opening. ,Tt is not, however, necessary that these reinforcing members should be `secured to the marginal states at the ends ot the members, since practically the same results would follow it the ends ot the reinforcing' members Were carried to a point several stares beyond the marginal staves and there secured. l do not, theretore` irish to be limited in the applicationof my invention to Securing the rods ,Which cross the openings to the marginal stares. Also. in using` the term continuous door opening as applied to my invention l refer to any door opening in the silo tva-ll which Will need to have some meansl to hold the marninal members thereof in fixed relative position. lt. tor example. several diderent openings Were einiiloyed in a silo. having` independent tops and bottoms, `but each re- (wiringb such reinforcement. these openings although not related to each other`r Would tall Within the scope of my invention` 4 l claim:

l. It silo the Walls of which are formed entirely ot matched stave@l and provided with a continuous door openingr up one'side thereof. in combination with circumferential reinforcing' members. there being secured to each end ot each ot said reinforcingy members separate portions ln'ivinggn independent connections with the adjacent marginal stave and the marginal stave across the door opening. respectively. whereby* tightening ot the reinforcing members n'ill operate to dranv the stares, ot the silo together While pulling the marginal members equally in both dii-elicits and holding them in fixed relative position.

2, l silo the walls ot which are formed ot matched stares and provided with a. door openingr extending brun-een a pair of said stares ot normal thii-kneg. a series ot lugs secured to the stares at the margins ot the door opening, each ot said lugs beine toi-med with a plurality ot horizoncross lugs and retallydisposed aperture:

ai their ends bj;

and a pluextending througll each of said cross lugs and secured sets ot marginal lugs and being secured to the marginal lug across theA door opening troni its cross lug, the remainder of said sections passing' through apertures in and being` secured directly to the adjacent' mar ginal lug only,

i silo the walls of which are formed ot matched staves and provided with a door opening` extending between a pair of' said statesy ot normal thickness, a series of lugs' secured to the staves at -tlie margins ot the door opening, each ot said lugs being formed With a. pluralityT of horizontally disposed apertures,` cross lugs and reinforcing bands secured at their ends by means of a threaded nut thereto, and a pair ot short band sections extending through each of said cross lugs and secured at 'the ends thereto. a part of said sections' passing through apertures in both of the sets of marginal lugs and being secured to the marginal lugs across the door opening from its cross lug. the remainder of said sections passing through apertures in and being' secured directly to the adjacent marginal lug only, said pair of crossing bands passing through closely adjacent apertures in the marginal'lugfsI so as to extend in close parallelrelation across the said opening.

4. A silo the Walls of which are formed ot shrinkable ymaterial and provided With a door opening, in combination with circumterential reinforcing members comprisin; a single band extending to a point near the marginal members at the sides ol the .door opening, and a pair o'band sections relative position.

5. A, silo the Walls of which are formed ot" shrinlable material and provided with a door opening, in combination with eircumerential reinforcing: members compris'- ing a single band extending to a point near the marginal members at the sides of the door opening", and a pair of band sections extendingr from the ends ot1 said single band, apertured plates .through which the single band and the band sections extend, restrain; ing means on the ends ot-said single band and band sect-i' C engaging said plates on opposite sides to .secure the single band to the band ions, at least parte? :said restrain-in ins ccmj'irising nuts threaded :Keir o f band sections including one' member tions and hold themA in xed relative v tened to the adjacent side member ofsaid position.'

opening and the other member extending In testimony whereof I affix my signature across and 'being secured to a.y wall member in, presence of two witnesses. v

As, ofde sidebeyond the. door. Aop.e1 liirlfiwlie'ref' FRED J. MCARTHUR.

' by o'peratin said nuts wilL-seryefo tighteI-iv Witnesses: A

the silo an `at the salme time to pullv the f `H.'A.Bow1scm.1-r, x i, marginal ;membersf}eqna11y jin both ldirec-' F. A. WHnELEY.

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