US2153473A - Door structure for silos - Google Patents

Description

. April 4, 1939.

M. W. MOTT DOOR STRUCTURE FOR SILOS Filed April 22. 1938 2 SheetS-Sheefl l mommge April 4, 1939. M 'W' MQTT 2,153,473

DOOR STRUCTURE FOR sILosV Filed April 22, 1938 2 sheets-sheet 2 Patented pr. 4, 1939 I UNITED STATES PATENT OFFICE DOOR STRUCTURE FOR SILOS Maurice W. Mott, Red Creek, N. Y. Application April 22, 1938, Serial No. 203,696 3 Claims. (Cl. .Z0-1.4)

This invention relates to a combined hinged and adjustable closure units for disposing in suand continuous door structure designed primarily perimposed relation rearwardly of said members for wood or concrete silos, but it is to be under- 'and elements to close the silo, and with said elestood that a door structure in accordance with ments and units including coacting means for y5 this invention is for use in any connection for rmly and detachably holding said units in su- 5 which it may be found applicame, perimposed relation when in closure position.

The invention has for its object to provide, in Further objects of the invention are to provide,

a manner as hereinafter set forth, a continuous in a manner as hereinafter set forth, a continudoor structure for silos including a series of indeous door structure for the purpose referred t0 pendently adjustable, latchable, hinged closure which is comparatively simple in its construcunits capable of being respectively arranged in tion and arrangement, strong, durable, thoroughsuperposed relation for closing the silo; foldable 1y eeielit in its use. COI1Veuier1t1y. adjustable. back against the inside of the silo and completely readily Set up, and comparatively inexpensive t0 out of the way when adjusted to open the silo; manufacture.

and/or easily lifted off of their hinges for stor- Embodyihg the Objects aforesaid. and t0 0thers 15 age elsewhere if desired, which may hereinafter appear, the invention con- A further object of the invention is to provide, sists ofthe novel construction, combination and in a manner as hereinafter set forth, a continu.- arrangement of parts as Will bemOre sDeCiCally ous door structure including a series of indedescribed and illustrated in the-accompanying pendently adjustable, latchable closure units for drawings; wherein is shown an embodiment of 20 disposing in superimposed relation and having tile iuVeutiOu, but it is t0 be understood that the joints therebetween and with the silo of shipchanges, variations and modieations may be relap construction providing, when said units are sOrted t0 Which fell Within the SCODe 0f the invenin closure position, a perfectly smooth substantiOn as Claimed.

tially continuous surface between said units, and In the drawingsb.- 25 also between the units and the wa11 of the silo Figure 1 is a front elevation, broken away of on the inside of the latter, resulting in the elimithe continuous door structure, nation of door bending, leakage and spoilage Figure 2il is a fragmentary VieW, irl rear eleve'- around door joints so often experienced with tion of the door structure,

other type doors for silos. Figure 3 is a fragmentary View, in front ele- 30 A further object of the invention is to provide VgtiOn and uPOrl an enlarged Seele 0f the dOOr in a manner as hereinafter set forth, a continustructure, ous door structure for silos including a pair of Figure 4 is a section on line 4 4 Figure 3, spaced, parallel door jambs, a series of continu- Figure 5 is a seCtiOrl 0111iue5-5 Figure 3,

ous adjustable, removable closure units for dis- Figure 6 is a section 0n line 6-6 Figure 3, 35 posing in superimposed relation and alternatelyA Figure 'itis a fragmentary view in front elevahinged to said jambs, normally horizontally distion and upon an enlarged scale illustrating a posed spaced superposed swingable step members pair 0f CIOsure unitsy in adjusted position,

on the outer faces of said jambs, spaced, fixed, Figure 8 is a section on line 8-8 Figure 7 with 40 superposed jamb spreaders bearing against the the upper step omitted, and 40 inner edges of and connected to the outer faces Figure 9 is a front elevation and upon an enof the jambs and alternately disposed in spaced larged scale of one of the adjustable closure units relation with respect to said members, and latchdetached.

ing means for the units carried by the spreaders, The continuous doorstructure includesV a pair 4g the construction and arrangement of the strucof spaced parallel vertically disposed jambs I0, 45 tural features aforesaid being such that when Il of the desired height and which coact to prothree successive units are opened from a position vide a door opening I2. The jambs are suitably of superimposed relation and a step member secured to the silo body, not shown. 'I'he width swung downwardly from horizontal position, and thickness of the jambs are to be as desired. 5@ there is ample space for a man to enter the silo The jambs will be partly countersunk in the inner 5o between a pair of superposed jamb spreaders. face of and extend from the'top to a point in A further object of the invention is to provide, proximity to the lower end of the silo body. The in a manner as hereinafter set forth, a oontinujambs will be arranged relative to the side edges ous door structure for silos including step memof the opening in the silo body'in a manner bers, combined' door jambs and step elements, whereby the inner lengthwise edges of the jambs 55 ayo will be disposed in spaced relation to said side edges. This arrangement may be had by rabbeting the portions of the inner face of the silo body bordering the opening in the latter, seating the jambs in and having the latter of a width to extend laterally in oppos'te directions from the rabbets. The jambs are of like form and each of which has the inner marginal portion of its inner lengthwise edge I3 provided with a section I4 of a ship-lap joint. The joint sections I4 are oppositely disposed. Each ship-lap joint section I4 is provided by forming the inner side marginal portion of the rear surface of a jamb lengthwise thereof with a rabbet.

The door structure includes two sets oi adjustable closure units. The units of one set are indicated at I5 and the units of the other set at I6. The units of the said sets are, arranged in alter-v nately disposed relation. As shown by way of example the units I5 are to be adjusted to the right and theunits I6 to the left when access is desired'to be'had to the silo. It is to be'understood that the units I5v maybe set up to be adjusted to the. left and the units I6 to the right. Each closure unit is of like form and includes a rectangular'. panel I1 of any suitable material, preferably Wood. Theside Yedges of the panel Il1 are`for`med in a manner to provide a pair of oppositely' disposed ship-.lap joint sections I8 for coaction with the joint sections I4 when the panel isili Closurepos'ition, as shown by Figures 4 and 5. The lship-'lap*joint sections I8 are provided by fqrming the side marginal portions of the front surfaces of the'panels with oppositely disposed transversely extending rabbets. The top and bottomedges or the panel are formed with oppositely disposed shiplap joint sections I9, 20. The joint section I9 of a lower panel is for coaction with` the joint section 2 9. ot an upper panel when thefpanels are in closureV position as shown by Figure 6. The ship-lap 4joint sections I9, 20 are DrvidQd by forming respectively the top and bottom Inarginalportions ot the frontsurface of the panels with oppositely disposed horizontally extending rabbets. The sections of the ship-lap JQ'lXltS. are S9 frmed that when they arein c0- acting relation there is, Yprovided a perfectly Smeeih.. Substantially continuelle Surface between said units and also between the units and the body fV the S119 Qntheinner side of the latter for Obtaining the,.dvantagesaforesad- Each of the units I includes a removably mountedv hinged. suspension 2 I` therefor arranged on thai-ront face of its panel I1. Each of the units "IIS4 includes a removably mounted hinged suspension22 therefor arranged on the front face of its panel I1. When the units are in superimposed relation, that is in closure position, the

suspensions 2l, are superposed and the suspensions 22 superposed. The suspensions 2I are oppositely disposed with respect to the suspensions 22 The suspensions 2| are arranged on one side of the units I5 and the suspensions 22 on one side oi the units` I6 which is opposite the side of the units I5 on which the suspensions 2| are arranged. y

The suspensions for the said units are of skeleten-like form andeach consists of a top member 23, formed with a rearwardly extending angularly disposed inverted` L-shaped depending inner end terminal portion. 24 andan angularly disposed. upwardly extending outer end terminal portion '25, a .bottom member 26 having a rearwardly extending angularlydisposed inverted L- shaped V,depending Vinner-end terminal portion 21 and an angularly disposed upwardly extending outer end terminal portion 28, an outer side member 29 arranged between and integral with the members 23, 26 and spaced inwardly from the end terminal portions 24, 21, and an inner side member 3D arranged between and integral with the members 23, 26 at the points of mergence of the terminal portions 24, 21 with the remaining parts of the members 23, 26. The vertical legs 3l of the end terminal portions 24, 21 vertically align and provide pivots. The end terminal portions 25, 28 vertically align and provide pivots. The member 29 is iiat and of rectangular cross section and constitutes a keeper for a latching member to be referred to.

Secured to the front face of each of the panels centrally thereof is a pair of horizontally disposed spaced vertically aligned short straps 32, 33 bent upon themselves at one terminal portion thereof to form vertically disposed barrels 34, 35 respectively. The said end terminal portions 25, 28 removably extend into and coact with the barrels 34, 3,5 torform a pair of outer hinged connections between a panel I1 and one end of a suspension. Each hinged connection is formed of a pair oi interengageable parts capable of being separated. The barrels 34, 35 whichcoact with the suspensions 2| are disposed on the ends of the straps 32, 33 opposite the ends of the latter on which those barrels 34, 3 5 are arranged which coact with the suspensions 22. The strapsv 32, 33 are arranged above the members 23, 26 respectively of a suspension.

Secured to the outer face of the jamb I0 are superposed spaced pairs oi spaced angle-shaped straps 36 for coaction with the suspensions 22. Each strap 36 is formed of an outer leg 31 and an inner leg 38 extending inwardly at right angles to the inner end of leg 31 and opposing theedge I3 of the jamb I0. The leg 38 is bent upon itself to form a vertical barrel 39. The straps 36 oi each pair arearranged below the members 23, 26 of a suspension 22,. The end terminalportions 25, 28 of a, suspension 22 removably extend into the barrels 3,9, of a pair of straps 36, to form a pair. of inner hinged connections between the jamb lll and the other end ofv a suspensionA 22. Each hinge connection between a. suspension 22 and. the jamb I0 is formed of a pair of interengagable parts capable of being separated.

Secured to the outer face ot the jamb. II are superposed spaced pairs of spaced angle shaped straps 4.0 for coaction with the suspension 2l. Each strap 40 is formedv of an outerleg IlV and an. inner leg 42 (Figure 8) extending inwardly at right angles to the inner end of leg 4I and opposing the edge I3. of the jamb II. The leg 42 is bent upon itself to form a vertical barrel 43. The straps 4B of each pair are arranged below the members 23, 26 oik a suspension 2l. The end terminal portions 25, 28 of a suspension 2| re-V movably extendv into the barrels 43 of a pair oi straps 4t to form a pair` of inner hinge connec- 'tions between the jamb I.I and. the other end oa suspension 2|. Each hinge connection between a suspension 2l and the jamb II is formed of a pair of interengageable parts capable of being separated.

Themanner of setting up the straps 32, 33, 36 and 43 relative to the suspensions permit of the panelsbeing swung inwardly to oppose the inner face of the body of the s'lo. The panels of the units I5 are to be swung to the left and the panels of the units I6 are tov be swung to the right. A further provision is had whereby'the suspen- 'sions may be expeditiously separated from the jambs and from the panels.

The door structure includes a set of superposed adjustable step-forming members 44 which when in normal position are disposed horizontally and extend when in normal position from the jamb I0 to the jamb H. The members 44 oppose the outer faces of the units I6 when these latter are in closure position. The members are of like construction and each consists of a bar 45 having an angularly disposed depending end terminal portion 46 which loosely extends into a barrel 41 from the lower end of the latter. The barrel 41 is integral with a carrier 43 therefor pivotally lconnected, as at 49v to the front of jamb I0. Se-

cured to the front of jamb II are superposed angle-shaped keepers 50, each associated with the other end terminal portion 5I of a member 44 to detachably support the latter in the position shown in Figures 1, 3 and 4, that is extending horizontally and across a unit I6.

The door structure includes a set of superposed horizontally disposed combined step forming and jamb spreading elements 52 of like form and each 0f which extends from jamb I6 to jamb II. The elements 52 when the units are in closure position oppose the outer faces of the units I5, as is shown in Figures 1 and 3. The elements 52 are permanently secured to th'e jambs I0, II and are alternately disposed with respect to the members 44. The elements 52 are of like construction and each consists of an outwardly opening channel shape portion 53 forming a wide foot tread and a pair of oppositely disposed tapered end portions 54, 55 formed at their inner ends with inwardly extending flanges 56, 51 respectively providing abutments. The inner wall of the portion 53 merges at its ends into the inner ends of the end portions 54, 55. The top and bottom walls of the portion 53 are extended on and merge into the front face of the portions 54, 55. The inner end parts of the portions 54, 55 are of greater width than the height of portion 53 whereby the ends of the latter will be spaced inwardly from the top and bottom edge of said portions 54, 55. The top and bottom walls of the portion 53 are connected to the portions 54, 55 by the web 58. The portions 54, 55 are secured to the jambs I0, II by the holdfast devices 59a. The flanges 56, 5'! are arranged against the edges I3 of the jambs I Il, I I whereby these latter are maintained in spaced relation.

The door structure includes a set of latching members 56a, each of which is pivotally connected against the inner face of an element 52 and consisting of a shank 60 terminating at one end into a handle 6I. The shank 66 at its other end has one side edge thereof formed with an angleshaped nose 62 disposed at right angles thereto. The nose 62 is formed of a pair of legs 63, 64 extending at right angles to each other. Each latching member 59a is for coacting with a suspension 2I of a unit I5 for latching the latter in closure position. When a latching member 56a is in active position the leg 63 thereof is arranged vrearwardly of the side member 29 of a suspension 2l, the leg 64 abutting a lengthwise edge of such side member and the handle 6I seated on the top wall of the intermediate portion 53 of an element 52 and in this connection attention is directed to Figure 5. The said side member 29 coacts with a latching member 59EL to form a keeper for the nose 62 and prevent a unit I5 being swung inwardly from its closure position shown in Figure 5 until the latching member has been swung to the position shown in Figure '7.

When the units I5, I6 aredisposed in superimposed or closure position, such as shown in Figures 1 and 2, and when the latching members 59al are active the units I6 are latched to the units I5 and the lunits I5 are latched to the elements 52 they will be held in such position until the units i5 are released. When an upper latching member 59a is released it unlatches an upper unit l5 and the lower'unit I6 directly below such unit I5. The ship-lap joints between a unit I6 and the pair of units I5, between which unit I6 is arranged prevents the opening of unit I6 until the upper unit of the said pair of units I5 is unlatched and further acts to prevent the opening of the lower units I5 of the said pair of units I5, even if such lower unit is unlatched until the upperunit I5 of the said pair of units I5 is unlatched.

When a set of three superimposed units are opened and the step members 45 which extend across the central unit of such set is dropped to the dotted line position, Figure 2, there is ample room, between the elements 52 which extend across the outer units of said set for a man to enter the silo.

What I claim is:

1. In silos, a pair of parallel spacer jambs providing a door opening, each of said jambs having the rear portion of its inner side edge formed with stepped rabbets, independently shiftable continuous closures for disposing in superimposed overlapping relation in said opening and for seating in the rabbets of said jambs, the abutting edges of each pair of superimposed closures being rabbeted to provide for the overlapping of such closures, the side edges of each closure being rabbeted to pro-vide for the closure seating in the rabbets of the jambs, spaced inner pairs of spaced pivot receivers, each pair being secured to the front face of a closure, superposed spaced outer pairs of spaced pivot receivers secured to the front face and extending inwardly from the inner side edge of each jamb, each pair of outer pivot receivers correlated with and arranged below the receivers of an inner pair, suspension means for each closure, each suspension means being formed with oppositely disposed pivots for mounting in the correlated pairs of receivers to provide in connection with the latter a hinge connection between a closure and a jamb, and superposed spaced combined step formers and spreader elements extending across each alternate closure, said elements being secured to the front faces and bearing against the inner side edges of the jambs.

2. Inv silos, a pair of parallel spaced jambs providing a door opening, each of said jambs having the rear portion of its inner .side edge formed with stepped rabbets, independently shiftable continuous closures for disposing in superimposed overlapping relation in said opening and for seating in the rabbets of said jambs, the abutting edges of each pair of superimposed closures being rabbeted to provide for the overlapping of such closures, the side edges of each closure being rabbeted to provide for the closure seating in the rabbets of the jambs, spaced inner pairs of spaced pivot receivers, each pair being secured to the front face of a closure, superposed spaced outer pairs of spaced pivot receivers secured to the front and extending inwardly from the inner side edge of each jamb, each pair of outer pivot receivers correlated with and arranged below the receivers of an inner pair, suspension means for each clo- Sure, Sash Suspension means. beings formedwh op sirtely dispos-.edr pivotsf for rmounting in the correlated pairs of receivers to -provide' in' oonnection with the latter a hinge connection ber. Vtween a closure and aV jamb, superposed spaced combined step formers and spreader elements extending across each.A alternate closure, said V2.1@-y ments being secured to the fronti-aces and bear*- ing against the inner side edges of the jarnbs, and shiftable means carried byY said elements for latching thesaid alternateclosures in closedposi-- tion whereby the other of said closures will be releasabrly held in closed position by the alternate closures.

3. In silos, a pair ofV parallel spaced jambs pro-- vidingr a door opening, each of said jambs having the rear portion of itsA inner side edge rabbeted, independently shiftable continuous closures for disposing in superimposed overlapping relation @legers cured to the fronts of said jambs, and shiftable Ineans carried by said elements for latching the said alternate closures in closed position whereby te'o'ther of the said closures will be releasably by the alternate closures.

heldv closed` position MAURICE W. MO'I'I.

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