US1189108A

US1189108A - Apparatus for molding and sinking concrete piling.

Info

Publication number: US1189108A
Application number: US5653915A
Authority: US
Inventors: Henry W Hildebrand
Original assignee: Individual
Current assignee: Individual
Priority date: 1915-10-18
Filing date: 1915-10-18
Publication date: 1916-06-27
Anticipated expiration: 1933-06-27

Description

H. W. HILDEBHAND. APPARATUS FOR MOLDING AND SINKING CONCRETE FILING.

APPLICATIONFILED OCT. 18. I915.

Patented $111527, 1916.

Mir/for VA k. Z 4 i 7 0 J 2F 41 4 .X H

HENRY W. HILDEBRAND, OF GALVESTON, TEXAS.

. AIPPABATUS FOB HOLDING AND SINKING CONCRETE FILING.

Specification of Letters Patent.

Patented June 27, 1916.

Application filed October 18, 1915. Serial No. 56,539.

To all whom it ma concern:

Be it known t at I, HENRY W. Hum:- BRAND, a citizen of the United States, residing at Galveston, in the county of Galveston and State of Texas, have invented new and useful Improvements in Apparatus for Molding and Sinking Concrete Piling, of which the following is a specification."

The present invention relates to a method and apparatus for forming and sinking piles, blocks, slabs, and the like, referably constructed of concrete, and has or its object a method and provision of an apparatus, for carrying the method into effect, whereby the molding and sinking of concrete piles or the like is facilitated and the cost of which is materially reduced.

The invention contemplates the provision of a mold provided with a movable bottom having connection with a water supply under pressure so that when the pile or the like has been formed within the mold and while still forming, the same may be sunk into the groundby the removal of the earth under the bottom of the mold, which is effected by a stream of water under pressure issuing from the pipe connected therewith. As the earth is adually washed away under the bottom 0 the mold by the force of the water issuing from the pipe carried thereby, said bottom gradually descends under the weight of the concrete Within the mold, until the same has reached solid ground and the water pressure has lost its excavating effect. It is to be borne in mind that the essential feature of the invention resides in the simultaneous making and sinking of a pile or the like, or, in other words, the sinking of a concrete pile while the same is being formed. It is, also, to be noted that in the method of making and sinkingpiles according to this invention, the mold or shell is not inserted or embedded in the ground and that the earth is only excavated during the sinking of the pile. I

Other objects and features of the invention will be apparent from the following description, when read in connection with the accompanying drawings, and. further consist in a certain novel construction, combination and arrangement of parts hereinafter more fully described and finally pointed out in the appended claims.

- In the drawings which formpart of the specification, Figure 1 is a perspective view of the invention illustrating the apparatus contemplated thereby and the method employed for forming and sinking the piles or the like; Fig. 2 is a vertical longitudinal sectlonal view of Fig. 1; Fig. 3 is a detail perspective .v-iew of another form of bottom for the mold.

In carrying the method above set forth into practice, the invention contemplates the employment of a form or mold indicated on the drawings by the numeral 1, and which may be of any shape, size or design to produce the article to be molded. In the present instance, t is preferred to show a tubular mold for forming concrete piles. The mold may be supported in position-by any suitable means, such as by the timber construction 2 having the spaced, horizontal beams 3 cmbracing the tube on opposite sides adjacent its upper end and secured thereto by the bolts 4. The upper end of the mold 1 may have its extremity outwardly flared, as shown at 5, forming an enlarged mouth portion into which the concrete mixture is discharged from the feeding spout 6 of a mixing machine, or the like. The lower end 7 of the mold'is closed'by a bottom member 8 which is held frictionally or otherwise in position in the mold. The bottom may have any convenient shape, for instance, thatof an inverted cone, as shown in Fig. 3. An end of the water pipe 10, extending longitudinally within the mold 1 and of a length in excess to the length of the mold, is firmly threaded, or otherwise secured, in the central portion of the bottom, the upper end of the pipe 10 "having suitable connection with a water supply under pressure.

In carrying the apparatus thus constructedinto practice, a hole of slight depth, when working on solid ground, may be dug to receive the lower end of the mold, then the concrete mixture is poured in at the upper end 5. thereof until the mold is nearly full. At this point the water is introduced, .nn'der pressure, through the pipe 10, which is discharged through the bottom 8 of the mold, this stream of water forcing the loose soil out from under said bottom of the mold and the concrete pile thus formed, in view of the tapering formation of the mold, slides downwardly out of the mold as fast as the soil,is'washed from underneath the bottom 8. As the pile thus descends, more concrete is introduced in the upper end of the mold and the water pipe 10 which is rigidly connected with the bottom 8 descends through the progress of the work until solid ground is struck and the excavating effect of the water pressure has been entirely resisted. I

It is to be understood that the concrete poured into the mold is allowed to stand until the same is sufficiently set to with stand any erosion caused by the action of the water which keeps boiling up all around the pile during the operation of sinking. T he purpose of placing the lower end of the mold in a slight depression in the surface of the ground is only to facilitate the commencement of the excavating operation of the water jet. The mold, however, is not inserted in the ground as has been heretofore common in cement pile sinking.

VJ hen the pile is thus formed and sunk, the extending upper end of the pipe 10 may he cut oil and the remainder thereof abandoned and allowed to provide a central reinforcing element for the pile. t may be found desirable to construct the mold 1 of several sections which are bolted or suitably clamped together, so as to facilitate the use of the mold.

It is to be understood that this invention not only contemplates the forming and sinking of piles, but also of slabs, and blocks, which may be used for abutments, etc. In the latter case, molds of different constructions may be employed, the bottoms of which may have connected therewith a plurality of water pipes 10.

In cases where piles are sunk in streams or rivers, the mold 1 is sunk perpendicularly to the water until it strikes the ground, the height of the mold being'regulated to the depth of the water, and operations are carried out in the manner above described from a barge or in any manner convenient or desired.

It is believed that the foregoing is a clear and accurate description of the invention. However, it is to be understood that certain changes as to the exact construction and the apparatus may be resorted to that carry out the method carried out by applicant and that fall within the legitimate scope of the appended claims.

Having fully described my invention, I claim-:-

1. A method for forming and sinking concrete piles or the like, consisting in introducing a concrete mixture in a form supported on the surface of the ground, whereby the pile is formed, and in introducing a jet of Water, under the base of the pile for excavating the soil thereunder and permitting the pile to descend from the form into said excavation.

2. A method for forming and sinking concrete piles, consisting in forming a portion of a concrete pile in upright position,

introducing a force of water under the base of said portion for excavating an opening for the pile as the said portion descends, and in forming more of the pile at its upper end as the pile descends into said opening.

3. A method for forming and sinking concrete piles, consisting in forming a portion of a concrete pile in upright position with means for the introduction of water from its upper end to below its lower end, in introducing water through said means to below the'lower end of the pile to excavate an opening for the pile, and forming more of the pile at its upper end as the pile descends into said opening. 7

4. An apparatus forforming and sinking concrete piles or the like, comprising, means for forming a concrete pile having a portion removable therefrom under the pressure of the contents in said forming means, and means associated with said removable portion for introducing a stream of water under pressure under said portion, whereby the soil nnder the latter is excavated as it descends and said pile is permitted to move out of said forming means into said excavation as said removable portion descends.

5. An apparatus for forming and sinking concrete pilesor the like, comprising, a form adapted to have its upper end. rest upon the surface of the ground, a bottom for said form removable under the pressure of the contents therein, a water connection secured to said bottom and adapted to discharge water therethrough for excavating the soil. thereunder and permitting the pile in said form to descend into said excavation as said" bottom descends.

6. An apparatus for forming and sinking piles or the like, comprising, a form adapted to have its lower end rest upon the surface of the ground, a movable bottom disposed in the lower end of said form, a pipe extending through said form and slidable therein, the lower end of said pipe being secured to said bottom and discharging water under pressure therethrough for excavating I the soil under said bottom and permitting the pile in said form to descend into said excavation.

7 An apparatus for forming and sinking piles or the like, comprising, a form adapts ed to have its lower end rest upon the surface of the ground, a bottom disposed within the lower end of said form and movable therefrom under the pressure of the contents in said form, a pipe extending longitudinally through such form and rigidly se cured tosaid bottom, said pipe providing a reinforcing element for the pile and being adapted to discharge water through said bottom for excavating the soil thereunder and permitting the pile within said form to descend into said excavation.

8. An apparatus for forming and sinking piles or the like, comprising, a form adapted to have its lowerend rest upon the surthe soil thereunder and permitting the pile face of the ground, a bottom disposed withwithin said form to descend into said exin the lower end of said form and movable cavation. v therefrom under the pressure of the con- In testimony whereof I'have hereunto set 5 tents in said form, a hollow reinforcing my hand in presence of two subscribing 15 member for the pile secured to said bottom wltnesses.

and movable therewith, said hollow member HEhT RY"W;'I-IILDEBRAN D. having one end connected to a water supply Witnesses: o under pressure and adapted to discharge the ARTHUR GRIGG,

10 same through said bottom for excavating E. D. Pnmurs.