US1275280A - Concrete-culvert mold. - Google Patents

Description

J. S. McCABE.

CONCRETE CULVERT MOLD.

APPLICATION FILED 0Ec.19. 1911.

1,275,280. Patented Aug. 13, 1918.

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' ATTORNEYS v UNITE STATES PATENT, OFFICE.

J OSEPH STEVENS MGCABILOF MINNEAPOLIS, MINNESOTA.

ooncnn'rn cunvnn'r MOLD.

To aZZ whOmit-m'ay concern:

Be it known that I, JOSEPH S.- MOCABE, a citizen of the United States, and a' resident of Minneapolis, in the county of Hennepin and State of Minnesota, have invented anew and useful Improven'ient in'Concrete-Culvert Molds, of which the following is a specification.

My present invention relates'generally to concrete culvert molds, and more .part1cu larly to that type 'of mold shown and de scribed inthe Patent No. 1243910 granted to me as'assignee' of Henry F. Worley, under.

date of October 23, 1917, the objects of my present inventionbeing the improvement of certain parts of the apparatus described and claimed in said patent, in the i terest of strength and durability.

More specifically, my present invention aims to improve the supporting arches of the patent above referred to, in certain respects the details of which will be presently brought out, another object being the pro vision of mold plates of improved constructions so as to render them stronger and more durable.

In the accompanying drawings illustrating my present improvement:

Figure 1 is a transverse sectional view through the parts effected by my present invention, illustrating one of the supporting arches in elevation.

Fig. 2 is a detail perspective View of a portion of one of the mold plates, and

Fig. 3 is a similar view of one of the crown plates.

Referring now to these figures, I have indicated generally at 10 one of the supporting arches, of which any suitable number may be utilized, and which are supported in upright operative position in use, by any suitable means, as for instance the means shown in the patent above referred to, and unaffected by my present improvement.

Each of the supporting arches 10 is formed by bending a section of angle iron to substantially a semi-circular form, and in the patent above referred to, the outstanding flange of the angle iron is notched to receive the flanged portion of the mold plate. My present improvements propose the elimination of these notches in the outstanding flange of the supporting arch, for the reason that they are likely to weaken the same and greatly reduce its stability, and my improvements propose to substitute therefor,

: I, Specification of Letters Patent. Patented Aug. 13, 1 918. Application filed December 19, 1917. Serial No; 207,872.

a plurality of "radiating lugs 11, disposed flatwise against the outstanding flange 12 of the arch, with inner butt portions en gaging the outer face of the lateral flange 13 of thearch, so that in order to'rigidly secure the several lugs in place, a single connecting bolt 14 extending through the same and through the arched flange 12, is suflic'ient.

The outer portions of the several lugs 11 have upstanding books 15 which engage the flanged portions of the several mold plates 16,-which'latter extend in their length between two or more of the supporting arches 10 and have portions lapping one another circumferentially of the arches.

Each of the mold plates 16 has an angular flange 17 along one edge, and this angular flange 17 is, in accordance with my present invention, provided with an extension 18 bent inwardly along a portion of the inner face of the flange 17 for a portion of the length of the said extension, the latter being bent angularly at 19 across the angle between the plate 16 and its flange 17 and having its free edge 20 paralleling a portion of the said mold plate 16. The opposite or free edge of the mold plate is turned in wardly thereon, as indicated at 21 and seen particularly in Figs. 1 and 2, so that the two edges are thus reinforced the flanged end 17 being more heavily reinforced by Virtue of the fact that it is this portion of the mold plate which is engaged by the outer hooked end of the respective lug 11.

It is obvious that the portion of the extension 18 paralleling the flange 17 reinforces the latter, while the portion 19 of the extension 18, in consideration of the fact that its edge 20 parallels a portion of the plate 16, forms an effective brace for the angle between the plate 16 and its flange 17.

As seen in Fig. 1, the several mold plates are utilized in lapped relation from both ends of the arch 10 toward the upper central portion of the latter, the remaining space at the upper central portion of the arch loeing occupied by a crown plate 22, which latter is in accordance with my in vention, provided with extensions at its opposite edges, portions of which parallel its inner side faces as indicated at 23 in Fig. 3, and portions 24; of which are bent inwardly at angles, so that the side portions of the crown plate 22, that is those portions which lap portions of the adjacent mold plates 16 1. concrete culvert mold including sup porting arches-formed of curved anglebarsf a plurality of lugs carried.-thereby,;each oftsaid lugs being secured to the outstanding flangexof the arch and having an:- inner 'en larged end abutting the lateral-flange of the.

arch and being provided with .a hook -pro,-- jectingbeyond the arch, and a plurality-of flanged moldplates, the flanges-ofiwvhich' areengaged by the outerhooks ofthe -several-- supporting.lugs.-

2. v A concrete eulvert'mold includingasup porting arches and mold plates supported-,-

by the arches,- each ofvsaid mold'platesxhaving an angular. fiange along one edger provided with an extension, the latter? being: 7 bent inwardly toward the I inner face i of the mold plate and having portions paralleling: v theinner face of 'the fiangeland the mold plate, for the purpose described-x copies :of this patent July-beLobtailcl -tofmvmocnts "each, b'yilufemn the diniifloiir "d1 htiiti,

3'. A concrete culvert mold comprising supporting arches, and a plurality of mold 2Efplatos suppoltedbyi tlfe' arehes, each of said mold lates having an angular flange along one e gethereof provided with a reverting extension, said extension having portions parai'leling the inner face of theifiangeiand theinner face-of themold plate and having a portion extending across the angle between the mold plate and. its -'flange,@.for the purpose-described.

4. 9 A Looncrete: culvertmold comprising supporting :gtrches, a'pluralit'y of mold. plates supportedby thearches,.and;a crown plate lapping: certain of. the mold plates and having -its side edgespnov'ided wan extensions bent inwardly' and at an angle to the plates,

extensionshaving certain .portions which parallel one another, and otherzportionsaxwhi'ch 1" arallelthe inner lower faceof the orown p ategforthe urpose descrihed. JQ'SEPHZSTEV NS MCGA'BE. Witnessesa v GEO-15F}. MbDowELn. A,.,R.Y .Ko1HN. a a

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