US950928A

US950928A - Corrugated sheet-metal culvert.

Info

Publication number: US950928A
Application number: US41595008A
Authority: US
Inventors: William M Lana
Original assignee: Individual
Current assignee: Individual
Priority date: 1908-02-14
Filing date: 1908-02-14
Publication date: 1910-03-01
Anticipated expiration: 1927-03-01

Description

W. M. LANA.

CORRUGATED SHEET METAL GULVBRT.

. APPLICATION FILED FEB.14, 1908.

Patented Mar.1,1910;

WILLIAM It'll. LANA,

or HARJLAN, town.

CORRUGATED SHEET-METAL G'ULV EIRT.

Specification of Letters Patent. ye -t p st 1, 191p,

Application filed February 14,,

race Serial no. 415,950.

To all whom it may concern:

Be it known that 1, WILLIAM M. LANA, a citizen of the United States, residing at lla-rlan, in the county of Shelby and State ot lowa, have invented a new and useful tudinal center, said parts being detachably connected so that a number of upper sections may be nested together, to be shipped and a number of lower sections may also be nested together for shipping, to thereby occupy a minimum of space, and be easily handled, shipped and'stored.

it further object is to provide iin roved means for connecting together the a jacent ends of corrugated sheet metal culverts.

A further object is to provide improved means for connecting together the upper and lower culvert sections.

A further object is to provide reinforcing rods tor the upper member of a culvert, to thereby strengthen and brace said upper s'ection'in cases where the culvert is made of I com arativel lar e diameter and consists P y g a t-lti of comparatively thin sheet'nietal, which would not of itself bear the load likely to be placed on it.

A. further object is to provide an improved end plate tor culvert sections.

My invention consists in the construction, arrangement and combination of the various parts of the device, whereby the objects contemplated are attained, as hereinafter more fully set forth, pointed out in my claims, and illustrated in the accompanying drawings, in which- Figure 1 shows a detailsectional perspective view of a part of a reinforced sheet metal corrugated culvert embodying my invention, and provided with an end plate connected thereto. Fig. 2 shows atransverse sectional'view of a sheet metal culvert embodying my invention; Fig. 3 is" a simi lar view on a reduced scale, showing a modithe upper culvert section is formed of sheet metal, and is provided with transverse corrugations throughout its length. The corrugations are indicated by the numeral 10,

and at the ends of the culvert l have formed the flanges 11 that extend outwardly at right angles to thelongitndinal axis of the culvert,-as clearly shown in Fig. l. In order to provide for connecting the ends of two adjacent culverts together, I extend bolts .12, or other suitable fasteningdevices, through said flanges. tlbviously, this may easily be done, because both sides of the flanges are accessible to the operator, and

holes may be punched to receive the bolts or other fastening devices.

. The lower culvert section is also made of sheet metal, and provided with mating corrugations. duch lower section, however, is arranged on amuch greater curvature than the upper section, and its central portionextends only a slight distance below a line drawn through its end portions. The corrugations in the lower sectionare indicated b the numeral 13, and the said lower section is preferably made wide enough to permit the endsolt' the upper section to rest upon the tops of the corrugations in said lower section, as clearly shown in Fig. 2. Ubviously, by forming the upper and lower sections in separate pieces, a large number of upper sections may be nested together for shipping and storing, and a similar number of lower sections may be similarly arranged.-

In order to provide water tight joints at the intersection of the upper and lower sec tions, 1 have provided connecting strips 14. These are also made of corrugated sheet metal, the corrugations being arranged to accurately fit over the corrugations in both the upper and lower sections, as clearly shown in Fig. 1. Then the connecting pieces and culvert sections. are firmly hel together by means of rivets 15 passed through the connecting pieces and the upper sections, and rivets 16 passed through the connecting pieces and the lower sections. Obviously, a culvert constructed in this mannor has a maximum strength, with a minimum amount of material.

lln some instances, it is desirable to malt e culvert sections of comparatively large d1- ameter, out of comparatively thin sheet metal, and in order to dolhis, and to make the culvert strong enough to withstand pres- IlO - reinforcing rods will beavailable against crushing strains from aboveon the culvert, and the said rods are connected with the culvert at the point where the 'culvert is i strongly reinforced by the connecting strips 14. .I have also provided a retaining Wall for the end of the culvert, which retaining wall comprises a frame 18 of structural steel, and a-body portion 19 of corrugated sheet metal connected with the frame. This retaining wall is then riveted to the end of the .culvert and is held in proper position with relation thereto, by means of brace rods of the kind indicated by the numeral 20, and shown in Fig. 1. I havealso provided an apron to be connected to the lower culvert section at the discharge end thereof. This apron is indicated by the numeral 21, and is connected by rivets 22 with the flange 11 at the end of the lower section. One of the advantages attained by the use of a culvert having its bottom section arranged on a comparatively great curvature, and its top section on a materially less curvature, is that the culvert is made wider at a point a short distance above its bottom, and hence, obstructions that enter the culvert are less likely to remain therein, and such obstructions may be more easily washed out when the culvert is flushed, than would be the case with round or square culverts. Furthermore, a culvert of this kind may be seated more firmly in the ground, and be less likely to be moved by settling or washing out of the ground around the culvert.

In the modified form shown in Fig. 3, I have dispensed with the use of connecting pieces 14:, and haveformed on the ends of the lower section u wardly inclined corrugated portions 23 designed to fit into the corrugations of the upper section, and firmly held to the upper section by means of rivets 24. In this way, I dispense with the use of the extra connecting strips 14, and I preferably employ this orm of connecting the upper and lower sections together when constructing culverts of comparatively small slze.

Having thus described my invention, what i I claim and desire to secure by Letters Patcut, is

1. A culvert comprising an upper sheet metal section substantially semi-circular in cross section, and a lower sheet metal section having a slight downward curvature at its central portion, and means for connecting the adjacent edges of said upper and lower sections together.

2. A culvert comprising an upper sheet metal section formed with transverse corrugations and substantially semi-circular in cross section, and a lower sheet metal section formed with transverse corrugations and having a comparatively slight downward curvature at its central portion, the adjacent edges of both sections having their corrugations arranged to fit into each other, and means for securing said adjacent edges together.

3. A culvert comprising an upper sheet metal culvert section having transverse corrugations, and substantially semi-circular in cross section, a lower sheet metal'culvcrt section having transverse corrugations, and having a slight downward curvature at its central portion, and connecting strips having corrugations formed therein designed to fitinto the corrugations of both the upper and lower sections, and means for securing said connecting strips to both sections.

4. A culvert comprising a sheet metal body portion having transverse corrugations formed therein, and a series of reinforcing rods secured to the body portion and mounted in the corrugations therein, in such a manner that the corrugated structure will prevent tilting movements of the reinforcing rods.

5. A culvert comprising an upper sheet metal section having transverse corrugations and substantially semi-circular in cross section, a lower sheet metal section having ,similar transverse corrugations, the edges of the upper section being designed to rest upon the edges of the lower section, connect ing strips having corrugations designed to fit into the corrugations of both sections,

rivets for connectlng the strips with both sections, and reinforcin rods having their ends connected with said rivets and their central portions contained within the corrugations of the upper section.

6. A culvert com rising an upper sheet metal section formed with transverse corrugations and substantially semi-circular in cross-section, a lower sheet metal section formed with transverse corrugations and having a slight downward curvature at its central portion, and means for connecting the adjacent edges of said upper and lower sections together.

7 The combination with a sheet metal culvert section having its end flared outwardly substantially at right angles to its longitudinal axis, of a sheet metal apron placed adjacent to said flared edge, and rlvets connectin the a ron and the flared edge.

8. T 1e com ination with a sheet-metal culvert section of a metal frame, a corrugated sheet metal retaining wall supported by said frame, said parts belng connected to the culvert section.

9. The combination with a sheet metal culvert section, of a metal frame, a corrugated sheet metal retaining wall supported by said frame, said frame and said corrugated retainin wall being both secured by rivets to the on vert section, and supporting rods connected to the frame and to the culvert section.

10. A culvert comprising an upper sheetmetal section substantially semi-clrcular in cross-section having its ends flared outward substantially at right angles to the longitu- 'dinal axis, a lower sheet metal section having a slight downward curvature at its central portion .and also having its ends flared slight downward curvature at its central portion and also having its ends flared outward substantially at right angles to the longitudinal axis, and means for connecting the adjacent edges of said upper and lower sections together.

12. The combination of two culvert lengths arranged end to end and respectively comprising an upper sheet metal section substantially semi-circular incross-section formed with transverse corrugations and having its end adjacent to the end of the other culvert length flared outward. substantially at a right angle to the longitudinal axis, a lower sheet metal section formed with transverse corrugations and having a slight downward curvature at its central portion and also having its end adjacent to the end of the other culvert length flared outward substantially at a right angle to the longitudinal axis, means for connecting the adjacent edges of said upper and lower sections toget-her,'and means such as bolts for connectmg said flared ends of the culvert lengths together. Des Moines, Iowa, Feb. 4:, 1908.

- WILLIAM M. LANA.

Witnesses: j

F. A. STEVENS, P. Jnssan.