US1115782A - Device for guiding piles in pile-drivers. - Google Patents

Description

F. R. OHRISTIANI. DEVICE FOR GUIDING FILES m PILE DRIVERS. APPLICATION FILED DBO. 4, 1912. 1,1 1 5 ,78 2 Patented Nov. 3, 1914,

3 SHEETS-SHEET 1.

w I ww/m THE NORRIS PETERS 60., PHOTO-LITHO, WASHINGTON, D. C.

F. R. GHRISTIANI.

DEVICE FOR GUIDING PILES IN PILB DRIVERS.

APPLIGATION FILED DEC. 4. 1912.

1,1 1 5,782. Patented Nov. 3,1914.

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F. R. CHRISTIANI.

DEVICE FOR GUIDING FILES IN PILE DRIVERS. APPLICATION FILED DBO. 4. 1912.

3 SHEBTST'BHEET 3.

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THE NORRIS PETERS C0,. PHOTO-LITHQ, WASHING I'ON. D. C. v

FRITZ RUDOLF CHRISTIANI, 0F HAMBURG, GERMANY.

DEVICE roe GUIDING FILES 11v FILE-DRIVERS.

T 0 all whom'it may concern:

Be it known that I, FRITZ Rumour Crims- TIANI, a subject of Denmark, and resident of Hamburg, Germany, have invented a new and useful Device for Guiding Piles in Pile- Drivers, of which the following is a specification.

In driving piles for sheet piling especially of concrete it is very di'llicult to make sure that the piles are driven in such an eXact manner that the tongues and grooves fully engage or that the grooves of adjacent piles coincide exactly to allow cement to be filled in later on. In using piles of wood, it has been tried to overcome this difiiculty by making use of two guiding beams, which stand apart forthe thickness of the piles to be driven down. This pair of beams was suspended, to hanging pillars which were connected to the frame of the pile driver by rotatable bolts. The upright position was merely held by the weight. Evidently by means of this device it was not possible to obtain an exact guiding.

According to the present invention also two guiding beams are used, which however are arranged on the pile driver or on its under-carriage or truck movably toward the wall or planking and which are pressed against the pile to a certain degree, so as to serve as clamping jaws and to firmly hold the pile to be driven, so that this pile is well guided when driven down. a I Figure 1 shows the underpart of a pile driver, in elevation, having the device forming the subject matter' of this invention attached to it. Fig. 2 is a similar view of a modification. Figs. 8 and 4 are detailed views of the connection between screw spindles 7a in the frame. Fig. 5 is a front view of the device shown in Fig. 1.

In the construction shown in Fig. 1 the carriage b of the pile driver a rests on a special truck 0, which is made to run on rails laid parallel to the sheet piling to be produced. The new device is attached to the beams cl of this truck. If however there is no truck of course the device may be attached to the frame of the pile driver, con structed accordingly or to the pile driver itself.

In the construction shown the device consists of four levers or plates 6, which are arranged in pairs and are pivoted symmetrically to rails f. These rails f are attached to the beams d in such way, that they can Specification of Letters Patent.

Application filed December 4, 1912. Serial No. 734,847.

Patented Nov. 3, 1914.

be loosened and shifted along the beams to any described extent. Nhen adjusted to the desired positlon they can be tightened again; The right hand levers are connected to one another by a beam h and the left hand levers are also connected to one another by a beam h thereby forming a pair of op positely disposed jaws. These planks are supported or steadied by strong iron beams, which also may be bolted. or attached to the levers e. The levers e are formed in the construction shown by two strong well braced triangular plates, between which on their outer points a nut 2' is pivoted by lat eral studs.

Each nuti embraces a screw spindle 7a which on its lower end, is provided with a handle or a handwheel 7c and onits upper end with a head on, which is pivotally attached to the rails f by means of lateral studs n.

The operation of the apparatus is the following: Before the work proper begins, the pile driver is brought in the proper position, the rails f are so adjusted that their centers lie in the central plane of the sheet piling to be erected whereupon by rotating the spindles la the beams h are moved away from each other to the necessary extent should this not have been done before. Then the pile 0 is brought in the position ready to be driven down, whereupon by turning the spindles is in the proper direction the beams h are made to approach to the pile 0 until they hold the pile between them. Then the pile can be driven down by the pile driver the beams h giving it a perfect guidance and preventing any twisting of the same. Thus the strain of forces produced by any tendency to twist or to oppose the correct centering are not transmitted to the pile driver or to the frame or structure carrying the same but to the planks already driven down. When the pivoted to brackets 7 attached to the frame a The n er arms e of these levers are rotatably connected with screwspindles Z0 which can be adjusted by the aid of cranks Z0 The operation is the same as described with reference to Fig. 1. The only difference is, that the device can not be shifted as a whole.

I claim:

1. In combination with pile drivers a device for guiding the piles in sheet piling, comprising two sets of levers pivoted to a fixed part in connection with the pile driver, a beam attached to each of said sets of levers and means to oscillate the levers to press the beams against piles held between them, which beams thus effectually guide a new pile in proper position, when the latter is being driven down by the pile driver.

2. In combination with pile drivers a device for guiding the piles in sheet piling, comprising two movable jaws consisting each of a beam attached to a set of levers pivoted to a fixed part in connection with the pile driver, and a screw gear adapted to move each set of levers in a plane at right angles to the sheet piling.

3. In combination with pile drivers a device for guiding the piles in sheet piling, comprising rails adjustably attached to a beam forming part of a truck on which the pile driver is arranged, and jaws pivotally fastened to the said rails.

4. In combination with pile drivers a device for guiding the piles in sheet piling, comprising two sets of levers, a beam carried by each set, a screw spindle and a nut rotatably attached to each set of levers, the

screw spindle being rotatably attached to a, fixed part in connection withthe pile driver.

FRITZ RUDOLF CHRISTIANI.

Witnesses:

MAX F. A. KAEMPFF, ERNEST H. L. MUMMENHOFF.

7 Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

Washington, D. 0.

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