US2056744A - Pile driver - Google Patents

Description

H. R. SMITH PILE DRIVER Oct. 6, 193.6.y

4 Sheets-Sheet 1 Filed NOV. l5, 1953 INVENTOR xM/z l BY /v7ta- Mg r MW ATTORNEYS Oct. 6, 1936.

H. R. SMITH PILE DRIVER Filed Nov. 15, 1953 4 sheets-sheet v. u im@ HTW ill wv MIT wm om I e xNvENToR www@ 7 ATTORNEYS H. R. SMITH Oct. 6, 1936-.

PILE DRIVER Filed Nov. 15, 1933 4 SlleetS-Sheel 3 E Ill] lNvENToR ,j V M j J //MTTORNEYS Oct. 6, 1936. H, R, SMITH 2,056,744

PILE DRIVER Filed Nov. 15, 1935 4 Sheets-Sheet 4 INVENTOR Patented Oct. 6, 1936 UNITED STATES PILE DRIVER Herman R. Smith, Douglaston,4

RaymondvConcrete Pile Company, New York, N. Y., a corporation of NewJersey Application November 15, 1933, serial Ne'. 698,097

s olains. (o1. s1-74) This invention pertains tol pile drivers, and

the object of the invention is to disclose Va pile river adapted for rapidly and'economically driving batter piles, even whenV the same job calls for piles at widelyA diierent angles, or, as sometimes happens, at reversed angles.

In generaL'the invention comprises pile'driver leads supported on the boom of a crane, in com; bination withV means, preferably operable by power, for' adjusting the position of the leads and for holding them rmly in any operative position. v 1 l The invention is illustrated in connection with the Sea Wall job `disclosed in Upson application Ser. No. 686,910, liled Aug. 26, 1933, in which sheet piles were driven at a slight batter in one direction, and'bracing piles were driven at lspaced intervals with a pronounced batter in the opposite direction. On that'job two separate machinesmight have been'used, one with its leads xed Vat an angle in onedirection for the vsheet piles, and the other withits leads xed in the otherdirection for the Vbracing piles. But the use'iof two"machines would have added greatly v'to thecost of operation. k

In the use of machines Ywith fixed batter it is a Avery diiiculumatter to placethe piles in the leads, especially jwhen the pilesfareloffeoncrete and very heavy. In'the present machine that -diiiiculty is avoided. The leads are so 'readily adjustable vthat they-may be moved to a Vertical position to receive the pile and support it until the pile head is entered into the follower under the hammer, and the pile point is placed in a suitable guide, after which the leads (and pile) are quickly set at the proper angle and position for driving.

During the driving operation it is of great importance that the lower ends of the leads be braced against sidewise motion. This is accomplished in the present invention by a slidable frame interconnecting the leads and the base of the crane, as will appear.

Further and other objects and advantages will be apparent from the specification and claims, and from the accompanying drawings which illustrate what is now considered the preferred embodiment of the invention.

Fig. 1 is a side view of the apparatus showing the leads in a full-line position for driving the sheet piles, and in a broken-line position for driving the bracing piles.

Fig. 2 is an enlarged detail view of apparatus for adjusting the lower ends of the leads.

Fig. 3 is a plan View on line 3-3 of Fig. 2.

The pile driver'ieads lo, with their structural" 5v" steel supDQrtin'g structure mounted at I4 onboorirlll The'lo'wer erds'of` theubeenrguy wires ynare anchored, at'ls en"A castings 2B whichform vpart ofthe base structure 22 ofv the 'machine and the'b'oom itselfis'pivoted on the same line. Base22 is usually moun'tedffor rotation onva turn-,table"24, and is illustratedy in the present instance'as extnding'vrearwardly toy support the hoisting drumsfwithfltheir power plant, 'and forwardly to supportI the ,devicesV of. the presentV invention which are operable'ffor positioningand bracing the lower ends'of the 4 leads. p,

ABoom@ I6'is movable through ar wideanigleVVV under control of cableV 26. drawn in thejboom is'swung'. rearwardly, and when the cable is' slacked off, the boomfactuated by the weight ot the lead structure hammer, etc., f swings forwardly ,and downwardly. In'Fig. l'the, fun-line drawing shows the leads' imposition-fer driving fa sheet pile"28 while the brokenline drawing shows them "in" position, forS driving a. bracing pile, 30. Line 32'iis`v the centerline' of boem |s whilepiieso is; being drwe;y

Foriadjustiiig"tlie'position of thelower ends of the Vleads,"l and 4 for"supporting' them rigidly in adjusted position the mechanism now to be described is provided.

Supported at the rear of the lead structure by frame work 34 and angle guides 36, is a crosshead 38 usually built of structural steel and adapted to slide snugly in guide 36, parallel to the leads. Pivotally connected to the lower end of crosshead 38 at 4D, are the forward ends of horizontal beams 42, 44, the rear ends of which are joined by cross channels 46, 48 and 5B, 52 forming a box girder in which is a threaded nut 54 mounted on a vertical trunnion 56. A horizontal screw 58 passes through the nut parallel to beams 42, 44 and midway between them, the rear end of the screw being supported for rotation in a journal box 60. Fast on the screw is a gear 62 in mesh with pinion 64 on the extended shaft 66 of a reversible steam engine 68 mounted on the frame of the machine. The screw is restrained from longitudinal movement by collars 70, 'l2 at the ends of journal 60, therefore, when the screw is rotated in either direction by the engine, beams 42, 44 are moved forwardly or 55 l2, are pivotally When the came' 1 is', 25

so'y

rearwardly to V'properly position the lower ends of the leads. Beams 42, 44 Yare guided for accurate longitudinal movement and restrained against sidewiseror Vertical movements by side rollers 14, 16, 18, 80, by overhead rollers 82, 84, 86, 88, and

by underneath rollers 90, 92, 94 and a roller (not shown) opposite 94, all suitably supported, as Will be apparent from the drawings, in a' structural Asteel framework having side channels` 96,V 98. This guiding structure is rigidly Vmounted on base structure 22.

From the above it will be readily understood that manipulation of boom I6 and screw 58 will quickly place the leads in position to sink batter piles at any angle within the range of angular adjustment provided in the machine, for in-Y stance, the twoV positions shown in Fig.V 1.

` tion |04, both formed of structural steel, as will Vbe suiciently apparent from the drawings.

The screw mechanism for adjusting the length of the boom is similar to that already described except that, for convenience, two screws, |06, |08

. suitable collars.

are used, passing through nuts ||0, ||2 on the ,sides of upper section |04, the lower ends of the "screws rotating in bearings ||4, ||`6 and ||8, |20

on lower boom section |02. The thrust of the screwis"taken by bearings ||8, through Screws |06, |08 are actuated simultaneously to lengthen or shorten the boom,

` by'another reversible steam engine |22 through its extended shaft |24, worm |26, worm gear |28, shaft |30, bevel gears |32, |34, and pinions |36, |38ffast on the ylower ends of the screws. By using engines v|22--and 68 the leads may be moved rapidly to any desired angular position, and at any position the leadsl are automatically held rigidly in that position.

In describing the invention it Vhas not been considered necessary to discuss vthe hammer,

hoisting apparatus and other necessary parts of the machine, indicated in Fig. 1 of the drawings, all of which parts are well understood by those skilled in the art.

It is to be understood that the invention is not limited to the specific embodiment herein illustrated and described, but may be used in other ways without departure from its spirit as defined by the following claims.

What I claim isf 1. In a pile driver having a base, incombination, a lead structure, a boom supporting said structure, a support adapted for rectilinear movement carried by saidbase, means comprising a cross-head slidable in said leadV structure for pivotally connecting said support and the lead structure, and means for operating said boom to move said lead structure about its pivotal connection on said support, said adjustable support and the sliding connection between the lead structure and the cross-head being operable to place the lead structure in position to drive batter piles atvarious angles.

2. In a pile driverhaving a base, in combination, a lead structure, a boom supporting said structure, a support adapted for rectilinear movement carried by said base, means comprising a cross-head slidable in said lead structure for pivotally connecting said support and the lead structure, means for moving said support upon its base to place the lower end of said lead structure in various positions, and means for operating said boom to swing said lead structure about its pivotal connection on said support, both of said last mentioned means operable to place the lead structure in position to drive batter piles at various anglesand the slid ing connection between the lead structure and the support allowing for such swingingy move-v ment of the lead structure. Y

3. In a pile driver having a base, in combination, a structure supporting a pair of leads,

Y means carried by said base and having a ho'rizontal pivot for supporting said structure, a support adapted f orv rectilinear movement carried by said base, means comprising a cross-head slidable in said lead structure for interconnecting said support and said structure, and means for moving said support for adjusting said structure about said horizontal pivot to position said leads for driving batter piles at various angles.

' HERMAN R. SMITH.

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