US1082723A - Reinforced-concrete sectional pipe and culvert. - Google Patents

Description

. BUSGH.

0. c. ALLEN &

REINFORCED CONCRETE SEGTIONAL PIPBAND GULVERT.

APPLICATION FILED MAR. 9, 1912.

Patented Dec. 30, 1913.

NURRIS PETERS. mu. Lmm. WASHINGTON D C UNITED STATES PATENT OFFICE.

CHARLES C.'ALLEN ND CHARLES Bose-H; or NEBRASKA CITY, NEBRASKA, ASS GN- 012s To-THEwILsoN n-E-EnroRcEn CONCRETE .00.,- F NEBRASKA CITY, NEBRASKA,

A CORPORATION OF NEBRASKA.

REINFORCED-CONCRETE SECTIONAL PIPE AND CULVERT.

Specification of Letters Patent. Application filed March 951912.

PatentedDec.30,1913.

Serial No. 682,693. r

To all (c/lomit may concern Be it known that we, CHARLES C. ALLEN and Cnantns H. Bi scn. citizens of .the United States residing at Nebraska City, in

the county of ()toe and State. of Nebraska have invented new and useful Improvements in Pcinforced- Concrete Sectional Pipesand Culverts, of which the following is a.

, specification. y 10 This invention relates to conduits or culw'eits of the sectional type and made of reinforced concrete, and the primary object, of i the same is to provide means for etl'ectivoly Qrouting or sealing the bunntsbetWcen the coterininal ends of the sections of a strong and durable character and protected or guarded 2 gainst hinw-outs from inner or outer presure and also permitting the fornmtion of an inner flush 'joint so that the i n-' 2O terior portions of the connected pipe secand the application of grout to the inner channel from the tcp in a perfect manner 80 and also to provide for a perfect joint of the two channels and the sections.

A still further object of the invention is to provide reinforced concrete pipes or culvert sections having inner and outer grouting channels which may be filled from the top of the sections and also formedwith clencher or anchor channels for holding the grouting in place, both in the inner and outer ghanncls. and producing a. more reli- 40 able joint and means for positively preventing the displin-en'ient of the grouting when run into and through the channels-at the joined ends of the sections.

.Vith th-:- e and other objects and advantagcs in \iew the-invention consists inthe construction and zll'l'i'lilfijtllitlli' of the several pa rts which will be more fully hereinafter described and claimed, I

[n the drawing: Figure 1 is a perspective view of a pipe or culvert section embodying the features of the'invention.. Fig. 2 is. a sectional elevation of two pipe or culvert sections with ends joined and particularly illustrating the advantages of the channels and anchor 01' clencher grooves. Fig. 3 i-san'.

end elevation of one of the sections. I V 7 The numeral 5 designates .a pipe or cul vvcrtsection .o'r conduit formed of any suitable natcrial such asconcrete', and preferably reinforced by longitudinally extending strengtheningmembers or draw-bars '6 mm bedded therein and having-their opposite ends so dispo': as to project beyond the v ends of each section and overlapped with similar devices of contiguous sections for the purpose of receiving coupling means of any suitable characteiz, The projecting termipals of the draw-bars. which in the present instance are looped, will be accessible by the 76 structure shown or bf. any other preferred means. the use of these draw-barsin connecting pipe sections of'reinforced concrete-being well known in the art and readilyunderstood. The opposite ends of each section 5 are formed with segmental flanges 7 and '8, the flange 7 having its inner edge coinciding with the inner surfaceof the section andritspipe or culvert outer edge terminating at a distancein wardly from the outer surface of thersec- 20 tion. and the flange'8 being conversely zt'rranged and having its inner edge terminating at a distance outwardlyfrom the inner surface or periphery of the pipe section and its outer edge coincident with the outer surface of the section; -Between the outer edge of the flange T and the outer surface of the pipe section an anchor or clencher channel or groove 9 is formed, and between the inner edge of the flange 8 and the innersurface or periphery of the pipe section a similar anchor or clencher groove 10 is'provided, the grooves 9 and 10 having communication with each other through the medium of oblique cross-channels 11 at diametrically opposite points and about in alinement with the horizontal diameter of the pipe sect-ion. Between the inner edge of the flange 8 and the inner periphery of the pipe section, an inner channel 12 is produced, from which the groove 10 may be said to recede; and between the outer edge of the fian 'e 7 and the outer surface or periphery of the pipe section a channel 13 is provided from which the groove- 9 recedes. In other words, the anchor or grouting grooves 9 and 10 open into or have comnninication with the channels 12 and 13, and the latter are in communication ward flow of the grooves 9 and also flows downwardly throughthe cross-channels 11 into the lower channels 12- and grooves 10, the, grouting or plastic concrete being applied in such quantity until 15' all of the. channels and 'grooves are filled and the joint sealed, the grouting or concrete beingigiven a finished surface by the use of suitab e tools atjthe upper portions of the joined sections or where the channels 13 are formed and unite. It will be observed that there will he no obstruction to the clown- 'routing or concrete material in view of the downward inclination of the cross-channels 11. Then the grouting or plastic cement has been applied-as just-exp ained it will be anchored or clenched through the'medium of the keys formed therein by the rooves 9 and 10, and the grouting when 'idiardened will be reliably held in place-both in' the innerand outer channels, and blowing-outot the grouting by inner or outer pressure is prevented.- lhe cross-channels 11 also afford means for clos- .-ing the inner united channels 12 by gravitation'of the grouting or plastic concrete, and

through the construction specified the pipe sections may be laid in water and. the inner channels 12 grouted or filled with plastic concrete from the top of the united sections in a perfect manner and a positive bond between the two channels and pipe sections is provided.

WVhat is claimed as new is:

In a sectional conduit, the combination of abutting sections having the opposite ends formed with segmental flanges which are less in thickness than the body of the sections and the one flange having its inner edge coinciding with the inner surface of the section and the remaining flange having its outer edge coinciding with the outer surface of the section to provide outer and inner channels formed in the upper and lower {portions of the adjacentends of the sections,

anchor grooves being formed at the inner termmals of the flanges and opening into and receding from the said channels, the

anchor grooves having-their lower portions flush with the upper surfaces of the flanges and the outer and inner channels being connected by cross-channels forming the means of communication between the said channels and grooves.

In testimony whereof we have hereunto set our hands in presence of two subscribing witnesses.

CHARLES C. ALLEN. CHARLES H. BUSC-H.

Witnesses:

Louis J. STU'rT, OLIVER STEVENSON.

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