US1249970A

US1249970A - Silo-door frame.

Info

Publication number: US1249970A
Application number: US363715A
Authority: US
Inventors: Matthew L King
Original assignee: Individual
Current assignee: Individual
Priority date: 1915-01-21
Filing date: 1915-01-21
Publication date: 1917-12-11
Anticipated expiration: 1934-12-11

Description

Patented Dec. 11, 1917.

M w m m WITNESSES.- i/ 2% A TTORNEYS MATTHEW LKING, or BRADLEY; ILLnvoIs.

SILO-DOOR rnAME.

Specification of Letters Patent.

Application filed January 21-, 1915. Serial No. 3,637.

To all whom it may concern: I

Be it known that I, MATTHEWL. KING,

a citizen of the United Statearesiding at Bradley, in the county. of Kankakee and State of Illinois, have invented a certain new and useful Silo-Door Frame, of which the following is a specification.

The object of my invention is to provide a silo-door frame structure of simple, durable and. inexpensive construction, so constructed and arranged that the door will accurately fit the door opening and provided with a-smooth, firm edge for the door frame to fit against.

More particularly, it is my object to provide a cement door frame forming a. continuous door opening in a silo, which frame is provided witha metaljamb having parts embedded in the masonry and designed to be secured to reinforcing rods or wires in the silo wall, the cement portion of the door being soshapedand arranged as to be applicable to silo walls of any thickness by slight modifications.

A further object 1s to provide in such a device a' double connecting bar, securing together V the upright reinforcing means on each side of the door frame and provided witha spre ader-;between the connecting bars whereby any considerable. longitudinal expansion of the bars is prevented, said bars being designed to permit considerabl e: expansion of the silo wall but to prevent contraction thereof with relation to the door opening. v

My invention consists the construction, combination and arrangement-of the various parts of the device, whereby the objects con templated are attained, as hereinafter more fully set forth, pointed out in myclaims and illustrated in the accompanying drawings, in which-- I r Figure 1 shows a front elevation of a part of a silo showing the door jamborframe embodying my invention with, parts of the door framecut away. I

Fig. 2,-shows a horizontal, sectional view through the silo door frame and the 'door.

Fig. 3 shows a front elevation of the double connecting rod.

Fig. 4 shows a vertical, transverse sectional View taken on the line 44 of Fig. 1 and Fig. 5 shows a side elevation of the metal face of the door jamb showing the manner in which the thereto.

reinforcing wires are secured Patented Dec.11, 1917.

In the accompanying drawings, I have I used the reference numeral 1O to indicate generally the wall of a silo. The silo wall 10, is provided with a; verticalcontinuous dooropening,v At each sideof the opening H is a Jamb -of peculiar construction, which forms part of my invention. Thisjamb is preferably made by means. of molds madeaccording to my copending' application for.

patent on forms for. masonry structures, Serial No. 744,576, filed on 27 day .of Jane;

uary, 1913. g I The jamb comprises aframe'or'jamb forming an extension ofthesilo wall 10.

I l member 11, preferably made of cement and) Thecement jamb member. ll is preferably provided with a vertical air space 12, ex: tending approximately fromthe upper to of the= jamb.member 11 are beveled from 5 the lowerendthereof. The adjacent faces the outside of the silo wall inwardly and away from eachothen as shown in Fig. 2. In each side of the j'amb, I mount a T iron 14 with thetop of the iron resting against thelbeveled portion of the jam b andwith the shankfofi the T extending into the masonry portion 11 of the jamb. ,The T iron is provided with a plurality of; open: ings 13 in the shank. To the. openings- 13 are secured reinforcing rods or wires 15. In the outer surface of themasonry or cement portion 11 is cut opposite vertical 1 notches 16 extending from thetop tothebottom of the jamb. The tendencyof the reinforcing 4 rods 15, as will be seen fromthe drawings,

is todraw the shank of the T iron 14L to po sition substantially parallel to said reinforcing rods, ,To counteract this tendency,

I provideia connecting rod 17 having hook members 18 at eachenddesigned to extend over and engagetheshankof the T. iron 7 and to lie-embedded in the -mas.onry v11, as' L shown in Fig. '2. 'Over its central portion, the rod 17 is-divided into two parts, 17 and 17 spaced apart f,ron1-.;each other, and in. the middle of the portions'17 and 17 I provide a spreader bar 19*. The ;bar 17 serves several purposes. It counteracts the tendency of the reinforcing rods 15 to pull the T irons away from'their proper position, and also holds the T irons at a proper distance from' each other, whenever the walls of the silo contract. On account of door sections 19 having beveled side edges to fit the faces of said T irons. On the outer side of each door sectlon are a plurality of sliding catch members 20 designed to slide laterally and enter the notch or groove 16 when the door sections are placedin position and to be held by the T-irons.

The advantages of my improved silo door construction are numerous.- By making the portion 11 of cement or other similar material, it can bemade of any desired width and thickness so that it may be readily used in connection with silo walls of any thickness. By the use of the T irons 14 or similar devices, I am able to provide a perfectly smooth beveled edge door jamb to receive the door sections 19. By means of the connecting rod 17, I hold the T irons let against spreading to a distance farther apart than the width of the door section 19. The door sections 19 are therefore always wide enough to fit'the door.

()nthe other hand, should the silo wall expand, the resiliency of theportion's 17' and 17 is such as to permit them to bend and such expansion may take place without any breaks or cracks in parts of the silo.

The reinforcing rods 15 and the rod 17 counteract the effect of each-other so that there is no undue strain on the T irons 1 1.

On account of the smooth metal surface of the T irons and the means for holding the T irons in proper position, I am always able to get a tight joint between the door sections 19 and the sides of they door jamb.

I claim as my invention:

1. In a silo, having a door opening, jamb members of plastic material at the sides of said opening having beveled faces, to permit the door to be received in said opening with its inner surface substantially flush with the inner surface of the silo wall, and so that pressure from within will'force' the door toward said faces, upright T-irons each Copies of this patent may be obtained for five cents each, by addressing the Washington, I). C.

naaaevo having a flange forming a beveled face protecting one of said first beveled faces, braces extended across the door openlng substantially flush with the outer part of the opensaid opening having beveled faces, to permit the door to be received in said 0 enin with its inner surface substantially flush with the inner surface of the silo Wall, and so that pressure from within-will force the door toward said faces, upright T-irons each having a flange forming a beveled face to protect one of said first beveled faces, braces extended across the door opening substantially flush with the outer part of the'opening, having portidns embedded in said jamb members, and secured to said embedded flanges of the T-irons, said plastic material Jambs having vertical notches at their outer edges to receive locking bolts or the like, and for permittmg said bolts to engage said T-irons, and a door having beveled side edges, said door being provided on its forward surface with sliding locking bolts f0 entering said notches.

3. In a devlce of the class described, the combination of a S1lO,l12LV1Dg walls provided .vith a door oaenin 'ambs of lastic material arranged at the sides of said openings provided with beveled faces, T-irons ar ranged with their central flanges projecting into said plastic material jambs, .each having a flange resting agalnst and protecting one of said first named beveled faces, braces extending across said opening substantially" flush with the outer portion of said opening having their ends projecting into said ambs, a groove receiving the edges of said central flanges, and reinforcing means secured to said central flanges and extending into said walls.

Des Moines, Iowa, December 5, 1912.

MATTHEW L. KING.

Commissioner of Patents;