US1462435A - Pile lifter - Google Patents

Description

Juy 17, 1923- C.Im VVEEVT PILE LIFTE'R Filed Sept. 157 1922 latented .luly 17, 1923.

entre stares Metatag- CHARLES L. WEST, OF FRANKLIN, NORTH CAROLINA.

PILE LIETER.

Application :filed September 13, 1922.

To all whom t may concern Be it known that CHARLES L. l/Vnsr, a citizen of the United States of America, residing at Franklin, in the county of Macon and State of North Carolina, has invented new and useful Improvements in Pile Lifters, of which the following is a specification.

The object of the invention is to provide a grapple or engaging means suitable for use in connection with cement or concrete piles particularly of the reinforced type for facilitating the lifting, moving and positioning thereof through the agency of hoisting mechanism 0r tackle; and particularly to provide a simple and eiiicient device which may be attached toa reinforced conc-rete pile and interchangeably and successively applied to a number of such piles as a convenient means for engagement by hoisting mechanism in handling the piles; and with these objects in view the invention consists in a construction and combination of parts of which a preferred embodiment is shown in the accompanying drawings, wherein Figure 1 is a side view partly in section of a reinforced concrete pile and a lifter constructed in accordance with the invention applied in the operative position thereto, and also indicating the grappling feature of a hoisting mechanism in engagement with the lifter.

Figure 2 is a plan view of the same.

Figure 3 showsa modified construction of attachment for the hoisting mechanism.

The lifter consists essentially of a bar 10 adapted for arrangement upon the end of a pile 11 which is to be elevated, carried or positioned, and which is provided with reinforcing bars or rods 12 preferably extended beyond the upper end of the body portion of the pile t0 afford the projecting terminals 13. Said lifter bar is provided with openings 14 to receive said projecting terminals of the reinforcing bars and disengagement of said bar from these terminals is prevented by suitable holding means such as collars 15 fitted on the terminals and provided with set-screws 16 to lock them in place.

At its center the lifting bar is arched as shown at 17 to aflord clearance beneath the Serial No. 588,051.

same to permit of engagement with the arch of a hoisting hook or ring 18 with which may be engaged the hook 19 at the end of a hoisting cable 2O actuated by any suitable hoisting mechanism, not shown.

In the modified construction illustrated in Figure 3 the hoisting hook or ring 18a is attached to a bolt 21 extending through the arch 17a of the lifting bar 10a.

Having positioned the lifting bar on the upper end of the pile it is obvious that engagement 0f the hoisting cable therewith may be readily edected, and after the pile has been positioned the lifting bar may be detached and applied to another pile for similar manipulation, to the end that the setting of a series of piles in connection with a proposed structure or breakwater may be effected with facility.

A further and important utility 0f the reinforcing bars or rods 12 which are extended terminally beyond the end of the body portion of the pile to afford an anchorage for the lifting bar is that they serve equally as an anchorage 'for the cushion which is ordinarily placed on the end of the pile to receive the direct impact of the pile driver to protect the end of the pile. Any of the the ordinary types of cushions may be employed in this connection provided they are punctured or provided with openings to .receive the projecting ends of the reinforcing rods to the end that the cushion is thereby held against lateral displacement during the driving of the tool.

Having described the invention, what is claimed as new and useful is 1. A reinforced concrete pile lifter having a lifting bar for arrangement in contact with the upper end of the pile and provided with means for engaging the same, and a hoisting ring or hook connected with said bar at an intermediate point for engagement by the hook of a hoisting cable, the lifting bar being provided with openings for the reception of the extended terminals of the pile reinforcing rods, and means provided for holding said bar in engagement with the rods.

2. A reinforced concrete pile lifter having 2 ylfieefiee a' lifting bar for arrangement in contact ception of the extended terminals of the With the upper end of the pile and provided pile reinforcing rods, and collars engaging i With means for engaging the same, and a said rods for securing the lifting bar in 10 hoisting ring or hook connected With said place thereon. p 5 bar at an intermediate point for engagement In testimony whereof he aHXes his signab'y the hook of a hoisting cable, the lifting ture.

' bar being provided with openings for the re- CHARLES L, WEST.

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