US1453136A - Culvert - Google Patents

Description

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Application filed august 21, 1922. Serial lilo. 533,297.

To all wiz-om t may concern) lle it known that llaifrnn E. HITCHCOCK, a citizeniol2 the United States, residing at Blanchard, in the county ot Fage and State ot lowa, has invented certain new and usetul llmprovements in Culverts, ot which the itollowing is a specication.

My invention relates to culverts and particularly to a head therefor designed tor the purpose oit supporting or retainingthe bank at each end ci the culvert.

rlhe `principal purpose ozt this invention is the provision of a sheet metal wing wall which may be readily attached to culvert-s of `standard size and which will eftectually prevent sliding ot the earth adjacent the terminals of the `culvert and also caving in of the earth surrounding the culvertby reason of the tact that water cannot flow around the culvert and carry away the soil.

l urtherobject isto provide a head or wing wall which may be formed in sections and built either betore :application to the culvert terminal or at the time ot' application.

l further feature resides in the peculiar manner of attaching the wall to the culvert.

l further Wfeature resides in a culvert wall which may be adapted tor use with either circular or square culverts by simply :torming the opening circular or rectangular as the case may require.

ln the accompanying drawings forming a part of this speciiication,

Figure 1 is an end View of one form ot my culvert wall illustrating its application to a culvert, circular in cross section;

Figure 2 is a central vertical section through the wall shown in ligure l, the culvert being shown in side elevation;

Figure 3 is a side elevation ot the wall at one end of a culvert;

Figure 4 is an end view ot another form of my invention, illustrating its application 'to a culvert ot rectangular cross-section;

Figure 5 is a side elevation of the arrangement shown in Figure Ll.

Figure 6 is a horizontal sectional view on theJ line 6-6 ot Figure 5, and

Figure t is a detail section ot a modified term of attachment.

Referring now more specifically to the drawings by numerals et reference, 2 indi- Cates a culvert ot the ordinary type, in this instance being shown as ot' circular crosserectionu The wing-wall or head is indicated generally by the numeral 4l, Vand comprises a relatively rigidwsheet metal plate preterably rec tangular, and while it may take the form ot a single sheet, is preferably formed ot a plurality oi? sections 6 whose meeting edges may overlap and be riveted together or may be joined by nietal strips t5 secured to the respective sections in any suitable manner, such tor example as by bolts 9.

The lateral edges ot the plate t are turned rearwardlylto provide earth retaining 'llanges 1Q, which incidently serve to reinforce the wing-wall and obviate buckling thereof.

Upon the upper horizontal edge ot' the plate, is mounted a crown plate l2 ot triangular form, the upper walls ot which slope oppositely from the apex ot the crown toward the side edges ot the main plate. The upper wall or edge ot the crown plate is also provided with a rearwardly directed tiange let which at their lower portions join or abut the upper ends oi the Hanges l0 ot the plate l at the point w in figure 3.

rlhe crown plate may also, it desired, be formed in sections joined by a metal strip 15, or by overlapping the adjacent edges and then riveting or spot welding. The crown plate l2 may be attached to the plate l by means or straps 16 secured by rivets 1S.

lin addition to its connection with the culvert 2, the plate l and crown l2 is supported principally by a plurality oit metal posts or stakes 19 which are driven into the earth and secured to the inner tace ot the plate 4 and crown 12 by rivets 2l or the like.

For the purpose ot attaching the wall to the riln oft the culvert at its mouth, ll provide a series oit angle clips 22 secured respectively to the tace of the plate 4.- and to the inner wall oit the culvert adjacent its opening by rivets 24. its an alternative form which will be found entirely practical7 ll may provide the plate a adjacent its opening with a series of integral tongues which may be bent inwardly and secured to the culvert in the manner described.

Vlhe form or arrangement shown in tigure a,

except tor the tact that the opening in the plate l is rectangular to accommodate a culvert oit like character, is quite sin'iilar to the form shown in ligure l and the toregoing description substantially covers said hgure fl. ltlowever, in this figure 4, the plate d is attached to vthe culvert by integral tongues 25 arranged around the wall ot the lOl) rectangular opening and secured by rivets 26. In the present arrangement y"I have shown means for anchoring the wing-wall against movement tending to separate it from the culvert, this means comprising a rod or cable 30 attached at each side of the wall to the lateral ianges l0 near their upper ends or at a point intermediate the longitudinal center line of the culvert and the upper ends ot' the lateral posts or stakes, and at their lower ends in Fig. 3 to stakes 32 driven into the earth adjacent to the side ofthe culvert, or as shown in Fig. 5 to suitable fastening devices such as eyes 33 secured to the sides of the culvert. While these are preferred methods ot bracing the wing wall 4, it is understood that other forms may be adopted within the scope of the attached claims.

In Fig. 7, Ishow a modification and it is a view similar to Fig. 6, with the exception that the culvert 2 is corrugated, and the tongues 25 are bent to conformL to `t'lie curvature of the end corrugation, and secured by rivets 26.

From the foregoing description of the construction of my improved apparatus, it will be seen that I have provided a simple, inexpensive and eiiicient means for carrying` out the objects of the invention, and while I have particularly described the elements best adapted to perform the functions set forth, it is obvious that various changes in form, proportion and in the minor details of construction may be resorted to without departing from the spirit or sacrificing any of the principles of the invention.

Having thus described my invention, what I claim as new and desire to protect is:

I. In a device ot the character described. a main metal plate formed in sections securely fastened together, a crown plate also formed in sections and secured to said main plate at its upper edge, rearwardly directed ianges formed on said main plate and said crown plate and providing a bontinuous iange around the sides and upper edge of the device, said main plate being provided with a central opening for the terminal' o1 a culvert,

2. In a device of the character described. a main metal plate provided with a central opening adapted to receive the terminal of a culvert, a crown plate secured to the main plate along its upper edge, contiguous rearwardly directed flanges on each of said plates, clips secured to said main plate adjacent its opening tor attaehl'nent to a cul vert, supporting posts secured to the face of said main plate, and additional mea-ns for anchoring said plate to the ground.

In testimony whereof I aix my signature.

WALTER E. HITCHCOCK.

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