US1208332A - Silo. - Google Patents

Description

S. F. F. KNEPLEY.

suo.

APPLICATION FILED JUNE 20, 19.16.

Patented De@ 12,1916

E INVENTW WITNESES l Lacasse.

ion.

Y STEPHEN F. F. KNEFLEY, 0F WILLIAIVISPORT, PENNSYLVANII.

SIL.

Specication or Letters Patent.

Patented Dec.. 12, 1916.

Application ledlune 20, 1918. Serial No. 104,726.

vTo all whom it may concern ,certain new and useful improvements in Silos, of which the following is a specification.

This invention has reference to silos, and its object is to provide a door lock construction of particularly efficient character and to provide a splice free from objections to splices as heretofore constructed..-

ln accordance with the present invention there is provided a door frame with openings therein and in most part similar to door frames as used in silos and the doors themselves may be of usual construction except in certain details to be hereinafter described.

The doorv locks comprise levers carried by the doors on opposite sides thereof, each lever having` a stem portion and an eye portion on opposite sides of its pivot point, the lever being pivotally carried by the door, and, furthermore, the door carries la pivoted bail `having parts traversing the eyes of the levers in such manner that when the bait is lifted the levers are moved to the unlocked position and when the bail is lowered they are moved to the locked position, and the bails then serve as ladder rungs.

With respect to the sp'lices, the meeting edges are beveled at di'erent angles and are provided with an intermediate spline, the

arrangement being such that the splice is self-draining and at the same time when the parts are driven together the diderent angles on opposite sides of the spline prevent the commonly experienced diiiculty of splitting. kThe invention will be best understood from a consideration of the following detailed description, taken in connection with the accompanying drawings forming part of this speciicatiomgwith the further understanding that while the drawings show a -practical form of the invention, the latter is not conined'to any strict conformity with the showing of the drawings, but may be changed and modied so long as such changes and modifications come within the scope: of the appended claims.

lin the drawings, Figure 1 is a face view of the door frame of the silo with two of the doors in place. Fig. 2 is a longitudinal central vertical section of the showing of Fig. Fig. 3 is a section on a larger scale than Figs. 1 and 2, of a bevel lug and a portion of one of the locking levers. Fig. 4: is a perspective View of the locking, lever as viewed from the face neXt to the door. Fig. 5 is a section on the line 5 5 of Fig. 1 with a portion of the bail shown in dotted lines.

Fig. 6 is a perspective view of one of thebeveled lugs. Fig. 7 is an edge view of two meeting portions of sections of a stave showing the splice.

Referring to the drawings, there is shown a door frame consisting of stiles 1 and lintels 2 after the usual manner of constructing silo door frames, while back of the lintels are battens 3. The form of door frame described provides a series of superposed open ings 4 for access to the interior of the silo, and adapted v to close these openings are doors 5 which may beconstructed of cross strips 6 and upright battens 7, with the latter Y so spaced as to enter the openings 4 in close relation to the inner edges ofthe stiles 1. It Will be noted that the doors are constructed of any suitable material, whether wood, metal, or fibrous or other composition, with the battens 7 when the door 5 is in place about Hush with the plane of thc front of the door frame. When the door is made of strips of wood or the like, the battens 7 serve to hold these strips together, and stiflen the structure, and tv'hen the door is made of some suitable composition the battens serve as stiffening members-and in either case they serve as supports for parts to be described. Near the top and bottom of each door, the doors being upright inthe installed position, there is provided abail 8 having angle arms 9 at the ends in turn ending in angle extremities 10 lodged in the battens 7, so that the extremities 10 form pivotal supports with the axis extending transversely of the door and the extremities 10 entering the respective battens 7 at the facing edges of the battens.

Fivoted to each batten 7 near the upper and lower ends thereof is a iever 11 shown separately in Fig. 4, each lever l1 being secured to a respective batten by a pivot pin or bolt 12 traversing a suitable hole 13 through the lever. @ne arm of the lever is in the form of a stem 14C having one face 15 beveled, such face being the face toward the door on which the lever is secured. The

end of the lever remote from the arm 1t is in ofthe loop 16'about'the'eye 17 on .the face of the loop 16 toward the door are b eveled .as shown at'18, so that the bail arm 9 may V.extend through the loop 16 at a considerable angle to aline perpendicular to the plane of The stern` 14 is of suiicient lengthto override a respective stile 1 when the' lever`11 is about horizontal, and thenthe bevel face 15 is presented toward the stile 1,. To prevent wear of the stile, which is 'usually of wood, a metal lug 19 is made. fast to the' stile where it would otherwise be engaged by the stem 14, and this lug is beveled in conformity with the bevel face 15, so that when the lever"11"`is about horizontal 4the beveled tace15 engages the bevelv face of 'the lug 19,

draw the door 5 intol tight engagement with the 'inner faces ofthe Stiles 1 and lintels 2, the beveled lug 19 being in eect a wedge.

When the doors are lockedin position, the levers 11 are about horizontaland project oppositely one from the other, being made in rights and lefts, and the arms 9 of the@ bails 84 extend throughthe eyes I17' at an angle to both the horizontal and vertical, or, in other words, in a slanting position. This not only-holds the levers in the locked position by the weight of the bail, but alsov holds the bail in outstanding relation to the door with the yoke of the bail suiiciently below and far enough from the levers 11 and the outer face of the door to leave ample foot room, so that the yokes of the bails may be utilized as ladder rungs, these rungs being so arranged as to occupy positions similar to the rungs of the ladder.

When it is desired to release a door, the bails are" lifted, turning about the axes of the extensions 10 as pivots. The result is that the arms 9 acting on the loops 16 tend to turn the levers on their pivots 12, the arms 9 moving lengthwise of the eyes 17 of the loops 16 until ultimately lodgedin the ends of the loops remote from the stem 14. This causes a rocking o f the levers in adirection to move the stems 14 away from the wedge lugs 19 until the extremities of the stems 14 have approached sufficiently to clear the inner edges of thestiles 1, whereupon'the door maybe readily moved in a direction toward the interior of the silo. Each arm 9 close to the extension 10 has a bend or shoulder 20 in which the end of the loop 16 remote from the stern 14 lodges when the bail is lifted as far as permitted by the loop. This forms a temporary lock preventing the bail from falling of its own weight and requiring a force purposely applied to move it downwardly to again lock the door. In the latter condition the bail serves to hold the levers 11 against accidentalmovement to the unlocked position, because the arms 9 between the shoulders 20 and the yoke of the bail has a downward slant.

In silo construction the staves are sometimes spliced together by what is known as a self-draining splice. In Fig. 7 two sections 21, 22 .of a stave are shown. The section 21 has on onAe side of the joining end a bevel 23 and 'on the other side a bevel 24, while the section 22' has matching bevels 25, 26, respectively. TheA section 22 carries a spline 27 and the section 21 is provided with a groove -28 to receive the spline 27. VOrdinarily the bevels 28 and 24 and the matching bevels 25 and 26 have a relatively sharp angular slant about that ofthe matchin bevels 24 and 26. The result is that when thus 'clamping or cramping the parts together and serving as a wedge connection to the two-members of the usual splice are vdriven tightly together the bevels in the member 22 act after the manner of a wedge and frequently split the corresponding 'end of the section 21. ,With the splice shown in Fig. 7 the bevels 23 and 25 are so obtuse as to act similarly to shoulders without any tendand 26. At the same time the bevels 23 and 25 have a downward slant in the installed position of the parts which makes the splice self draining, but avoiding any tendency of splitting when the two membersi of the splice are driven firmly together,

The levers are pivoted close to the stiles with the bails engaging the`levers -at the ends remote from the stiles, wherefore the locking and clamping ends of the stems 14 of the levers engage the stiles close to the pivots and the doors may be tightly clamped in place without undue stresses on the levers and without the necessity of guards or guides for the levers, so that the structure is to a corresponding extent simplified without sacrificev of strength.

What I claim is 1. In a silo, the combination with a door frame and a door having battens adjacent to the sides and located on the outer face of the door, of locking means for the door comprising a bail pivotally mounted at the ends in the battens and extending crosswise of the door with the bail movable about an axis crosswise of the door, and looking levers door, a bail having angle ends pivoted in the battens on an axis transverse of the door, and levers on opposite sides of the door pivotally mounted on the battens with each lever having the outer end movable into overriding relation to the corresponding side of the door frame, and the inner end on the side of the pivot remotefrom the door frame being provided with an eye elongated in the direction of the length of the lever and traversed by a corresponding angle end portion of the bail.

3. ln a silo, a door frame and a door having longitudinally arranged battens nealr opposite sides of the door and spaced apart to set within a corresponding part of the door frame, a bail having angle ends entering the battens on an axis transverse of the door, and levers on the battens at opposite sides of the door, each lever being a substantially straight structure pivoted intermediately to the batten with one end movable into overriding relation to the corresponding side of the door frame and the other end formed with an elongated eye lengthwise of the lever and traversed by the corresponding angle end of the lever.

4. In a silo, a door frame and a door having longitudinally arranged battens near opposite sides of the door and spaced apart to set within a corresponding part of the door frame, a bail having angle ends entering the battens on an axis transverse of the door, and levers on the battens at opposite sides of the door, each lever being a substantially straight structure pivoted intermediately to the batten with one end movable into overriding relation to the correspending side of the door frame and the other end formed with an elongated eye lengthwise of lthe lever and traversed by the corresponding angle end of the lever, the eye in each lever being wider than the thickness of the bail and having the edges toward the door expanded or beveled to permit the angle portions of the bail to slant outwardly and downwardly from the door when the levers are substantially horizontal.

5. ln -a silo, a door having levers near opposite edges of and spaced from the outer face of the door and with their pivotal axes substantially perpendicular to the outer face of the door, each lever having the end on the side of the pivot toward the other lever provided with a substantially straight longitudinal slot, and a bail having angle ends pivoted to the door and extending through the slots in the respective levers.

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

STEPHEN F. F. KNEPLEY.

Witnesses:

L. EDMUND GILMORE, ELBERT A. PORTER.

Images