US1199877A - Mold for forming silo-staves. - Google Patents

Description

W. L. CUTLER.

MOLD FOR FORMING SILO SI'AVES.

APPLICATION FILED MAR. II, l(916.

@mum/woz futon/w11 Patented Oct. 3,1916.

\/\/. L.. C UTLER man@ s'rarns PATENT orrron WILLIS L. .CUTLEEL OF LEGRAND, IOWA, ASSIGNOR 0F ONE-HALF TO FRANK R.

`ENS.VII1\TClrEIR., 0F GILIVIAN, IOWA.

Specicaton of Letters Patent.

Patented Oct. 3, 1916.

Application filed March 11, 1916. Serial No. 83,625. y y

7% all whom t may concern: v

Be it known that I, WILLIS L. CU'rLER, a' citizen of the United States, residing at Legrand, in the county of Marshall and State of Iowa, have invented certain new and useful Improvements in Molds for Forming Silo-Staves, of which the following is a specication7 reference being had to the accompanying drawings.

This invention relates to molds for forming concrete articles, and particularly to molds for forming silo staves.

The general obj ect of this invention is the provision of a mold so constructed that a plurality of concrete silo staves maybe formed at one time, and further so constructed that the mold may be readily opened to remove the completed staves or closed into position whereby the staves may be formed.

A further object of the invention is to provide improved means whereby the sections of the mold may be held in proper rectangular relation or squared.

Still another object of the invention .is the provision of a mold having longitudinally extending partition members and side members so formed as to form a stave with a conveXity on one edge face and a concavity on the opposite edge face,- whereby the s1lo staves may fit into each other, and, 1n a measure, interlock.

Still another object is to provide improved means for interlocking the longitudinally extending division members' of the mold. into engagement with the outer walls of thev mold and improved means for locking the sections of the mold into rectangular relation when assembled.

Other objects will appearin the course of the following description.

My invention is illustrated in the accompanying drawings, wherein:

Figure 1 is a top plan view of a mold constructed in accordance with my lnvention, showing concrete inplace in two of the mold spaces; Fig. 2 is a section on the line 2-2 of Fig. l; Fig. 3 is a fragmentary section on the line 3-3 of Fig. 1; Fig. iis an enlarged cross section of one of the intermediate walls 24; Fig. 5 is a fragmentary perspective view of one of the intermediate walls 24, showing the ear 29; Fig. 6 is a fragmentary elevation of a portion of the walls 11 and showing the latch; Fig.`7 1s a perspective View of the means for hmgedly connecting the'end and sidewalls to eachl other; and Fig. 8 is a fragmentary plan view of the hinge end of wall 11.

Referring to the drawings, -it will be seen that my lmproved. moldcomprises a side member 10, an opposed side member 11 and the opposed end members 12 and 13. The member 12 is formed with an angular eXtension 14 designed to engage over the adjacent` end of the member 10 and be bolted or otherwise attached thereto, as by means of the screws 15,so thatthe member 12 will be held in right-angular relation to the member 10. The member 12 is formed on its extremity with an ear or .ears 16, and the member 11 is formed upon its end face but outwardV of its inner face vwith a corresponding ear or ears 17. If there is one ear upon the member 12 then the'member 11 is formed with two ears spaced from each other to admit the ears16 between them. If on the other hand the member 12 is formed with two ears, then the member 11 is formed with one ear adapted to be disposed between the two ears on the member 12. The ears are connected to each other by a pintle 18. The number of ears on the members 11 and 12 is not essential to my invention, but it is essential that the ears 17 shall be spaced from the inner face of the member 11, as illustrated clearly in Fig. 8. The member 10 isA against the inner facesof the members 13V and 12respectively, and thus the members 11V and 13 will beheld in rectangular relation to the members 12 and 10, respectively. The side wall-11 is provided with a loop or eye 19 and the extremity of the end wall 13 is also formed with aneye 20 which proj ectsY beyond the extremity of they end wall, and coacting with these eyes is a latch 21, one

vend of which is angularly bent and e'Xtends down through the loop or eye 20 and is headed, -as at 22, while the other end is downwardly bent and is adapted to be extended downward through the eye 19 to thus latch kthe side wall 11 to the end wall 13.

At spaced intervals the walls 12 and 13 vare formed at their upper and lower corners on their inner faces with concave recesses 23, and adapted to be disposed between the end walls 12 and 13 and engaged in these recesses are the dividing or partition walls 24. I have illustrated two of these walls but it will be understood thatthe number of walls will depend upon the capacity of the mold and that more than two may be used, if desired. Both of these walls are alike and each wall is formed upon one face with a longitudinally extending concavity 25 andy that its other face is. longitudinally convex,

as at 26. The concave face 25 extends'nearlythe height of the wall 24V and Vthen connects with ithe upper and lower faces yof the wall by a straight vertical portion 27. The convex face 26 is nearly the height of the wall and connectswith theupper and lower Afaces of the wall by an inclined 'face 28, as shown V most clearlyin Fig. 4. At its opposite ends each of the dividing or partition walls 24 is provided with-the outwardly projecting ears 29 which are-adapted to engage vin the recesses 23 and have rounded end faces for that purpose. The end faces of the intermediateportion ofthe wall 24, between the ears 29, is vertical and its flat against the inner faces of the walls A12 and 13. (See Fig. r Y

rlhe inner face of the side wall 10 is made with a concavity 30, of the same form as the concavity 25 inthe partition walls 24, and

the inner face of the side wall 11 is made with a convexity of exactly the same char- ,acter as the convexity 26 on the partition wall.

In practical use, the dividing walls 24 are disposed between the walls l2 and 13 with the ears 29 engaged in the recess-es 23, and interlocked thereby with the walls 12 and 13. The wall 13 is closed against'the ends of the walls 24, 10 and 11, and locked by means of the `latch 21. Concrete or othersemi-liquid cementitious material is then poured into the mold spaces and when it has sufficientlyhardened the latch is released and the end wall 13 opened. The release of the latch 21 permits the'end walls 11 and 13 both to be opened, thus permitting the first block to be readily taken out, the iirst division wall 24 readily removed, then the second block takenV leases the strain upon the mold that all of the blocks may practically be taken outl at one time, or nearlyso.

The form of the block made in the mold illustrated is shown in Fig. 2, and it will be seenthat the blocks so formed have to an extent interlocking engagement with each other and also that the blocks may be disposed in angularrelation with each other so as to form the walls of approximately round silos, if this is desired. The sections of the mold may be entirely disconnected from each other byiremoving the pintles 18, and the wall 12 may be readily disconnected from the wall 10 by removing the bolts or screws 15. Thus the mold may be-'put into very portableV form and readily transported Yand set up. 'The form or mold is .preferably made of cast iron, though it may be made of other suitable material. By the use of forms or molds-ofthis character, concrete slabs for silos or other structures may be readily and cheaply made,V and the outputv of these slabs very 4greatly increased.

`Having described Athe invention, whatd claim is:

1. A mold for forming concrete slabs including oppositely disposed end and side walls, one of the end walls being hinged to one of the side walls and the other end wall being hinged to the other side Wall, the firstnamed end wall andthe last-named side wall being rigidly connected to each other in rectangular relation, a latch for holding the walls in Aquadrangular relation, and inter'- mediate vpartition walls having at their ends upper and lower 4projecting ears, the end walls being formed with upper and lower recesses to receive said ears, said ears being rounded and the recesses being correspondingly rounded, whereby the partition walls may be shifted into angular relation to the side walls to remove them.

2. In a mold of the character described, an end and a side wall, the end wall having an angular portion overlapping` the side wall and detachably bolted thereto and an end and a sidewall each pivotally engaged with the first-named end and side walls, and a latch carried by the pivoted end wall and engaging the pivoted side wall to thereby lock the walls in rectangular position.

, In testimony whereof 'I hereunto affix my signature in the presence of two witnesses.

WILLIS L. CUTLER.

lVVitnesses: p

F. B. GILBERT, F. M. HARADON.

Copies of this patent may be obtained .'for ve cents each, by addressing the Commissioner of Patents, Washing-tomi). C.

Images