US417185A - Peters - Google Patents

Description

(No Mod-e1.) 2 Sheets-Sheet 1. 1

W.'P. HUMPHREYS. DRBDGING APPARATUS.

No. 417.185. Patented Deo. l0, 1889.

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(No Model.) 2 Sheets-Sheet 2. W. P. HUM-PHREYS.

DREDGING APPARATUS. No. 417.185. Patented Dec. 10, 1889.

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45 1 pipe having the 'features of my imln'oveinent I UNITED STATES PATENT OFFICE.

IVIIIIIIAM P. IIUMPIIREYS, OF SAN FRAOISOO, CALIFORNIA, ASSIGNOR 'lO CHARLES DODGE, OF `KVASI'IINGTON, DISTRICT OF COLUMBIA.

DREDGING APPARATUS.

Y SPECIFICATION forming part of Letters Patent No. 417,185, dated D\ecember 10, 1889.

Application filed August 24, 1889. Serial No. 321,830. (No model.)

To all whom it may concern;

Be it known that I, IVILLIAM P. HUM- PHREYS, a citizen of the United States, residing at San Francisco, in the county of San Francisco and State of California, have invented certain new and useful Improvements in Dredging Apparatus; and I do declare the following to be a full, clear, and exact description of the invention, such as will enable oth'ers skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to the letters and iigures of reference marked thereon, which form a part of this specification.

My invention relates to dredging-machines, and has particular reference to means for mounting, operating, and protecting the suction-pipe of hydraulic excavators.

The leading objects of my invention may be stated to be as follows, viz: rst, an im4h proved means for strengthening or protecting the suction-pipe whereby the entire length of the pipe is braced and strengthened; second, an improved joint or means for connecting the pipe-protector to the boat, so that the pipe and its protector may swing in unison whether in -vertical arcs-only or in both vertical and horizontal arcs; third, an vimproved manner of mounting the shaft for operating the excavator; fourth, an improved means 5 for raising and lowering the pipe and its at tachments, whereby easy and even torce is brought to bear upon all points of suspension.

In addition to these general purposes and objects the invention comprises various novel features of construction. v

Y The nature of my invention and the manner Ain which I construct and operate the same will be understood trom the following detailed description.

The accompanying` drawings illustrate a means ior carrying my 'invention into practice.

Figure l is a side elevation ol' a suctionillustrated with it, and showingthe excavator and a section of a portion of a dredge-boat. Figs. 2, 3, 4, 5, and 6 are transverse sections of suction pipe and protector, showing differ ent ways of providing the protector. Fig. 7 is a side elevation ot' the pipe having a reenforce or protector integral therewith and the manner of providing the hinge therefor. Fig. S is a plan view of a portion, showing trunnions upon the protector instead of a hinge and swivel.

Similar letters of reference indicate corresponding parts in all the figures where they occur.

A represents the end of a dredge-boat.

B is the suction-pipe, and O the excavator. The suction-pipe and excavator may be united in any suitable manner, as by universal joint, as shown at l), and the suction-pipe is provided with a universal joint b' at the boat. The joint b is suspended by means of aband b2 and link b3, swiveled at a point above, as shown at b4; but I do not lay claim to ythis manner of swinging the suction-pipe, as it is not my invention.

The excavator O may be of any desired form and mounted and controlled in any convenient manner, as will be'readily understood by those skilled in dredging machinery.

D is the protector for the suction-pipe, which may consist of a jacket, as shown in Figs. l, 2, 3, and e, or'of a re-enforce or enlargement integral with the pipe, as shown in Figs. 5, 6, and 7. In either case it forms an effectual strengthening means for the whole length of pipe, protecting it against undue lateral strain and guarding aga-inst bursting.

AS shown in Fig. 2,' the protect-or consists of a trough whose sides extend to or above the top of the suction-pipe. As shown in Fig. 3, it consists of a complete cylinder or tube encircling thc entire circumference of the pipe.

As shown in Fig. 4, the jacket or protector is of the same forni as that shown in Fig. 2, but is provided with a flat or other suitablyshaped and separate cap-piece D.

lhere the protector is formed integral with the pipe, it may extend all round, as shown by the thick walls in Fig. 5, or it may extend only a part ot' the way round, as shown by re-entorce d in Fig. 6, which re-enforeed side is preferably placed under the bottom of the pipes.

IOO

I do not in this pat-ent cla-ini the re-enforce form of protector, having made it the subjectrnatt-er of an application for patent filed November 18, 188i), Serial No. 330,677.

The protector has a connection to the barge or boat independent of the suction-pipe connection, which may consist of a `hinge (Z, as shown in Fig. 1, or trunnionsfl2 (Z2, as shown in Fig. 8, which latter work in sockets in or upon the boat. Vhen the trunnions are employed, the protector can only swing' vertically, and consequently the suction-pipe can have but the one inotion--viz., vertical-independent of the boat.

I do not in this application claim the trunnion form of hinge, the same having been made the subject-matter of a separate application for patent tiled September '18, 1889, Serial No. 324,310; but with the l'iinge I have devised a means for permitting movement of the suction-pipe and protector in both vertical and horizontal arcs. This consists of swivel ing theleaf or butt d3 of the hinge to the boat, as shown at d", by which means, in connection with the universal joint on the pipe, the pipe and protector can be swung in both vertical and horzontal aros, and the horizontal movement can be eifected when the lsuction-pipe and protector are in anyl degree of elevation 0r inclination. At suitable points the protector is equipped with cleats or straps e e, which are made to surround the entire sueti'on-,pipe and serve to provide seats for the bearings e c of the shaft E, which operates th excavator or cutter, thereby permitting .the shaft|` to be mounted directly on top of the suction-pipe, whereby it is stit'fened and s upported at numerous points in its length. The construction of the parts and the weight of the mechanism to which the suction-pipe .is connected are thereby simplified and reduced to a minimum, while all necessary strength and effectiveness are insured.

Ears c* c* are provided upon the straps to which the hangers or links ff are attached, which at .their opposite ends connect with the lower pulley-blocks F of a block and tackle rigged from a projecting beam or crane G above the suction-pipes. The rope Fi: at its outer end preferably connects with the excavator C, and is rove through the blocks comprising the series until it reaches the boat, where it is belayed in any suitable manner. The upper blocks are marked F', and there `will preferably be as many upper and lower blocks as there are cleats or straps around the protector and pipe; but I would not insist on this uniformity in number, as it may be found desirable to provide a greater numb'er of cleats or straps than pairs of pulleyblocks. This block-and-tack-lc arrangement serves to give an evenly-distributed pull upon the various points at which the tackle is connected to the suction-pipe, and thereby detends against strains upon the suction-pipe, which, if sudden, may result inthe immediate fracture of the pipe in case the strain or pull is applied at one pointf'as is usuallyY the case in dredges now known land used.

' Theft-ame or crane Gr may be of any desired form, and may be made to swing laterally with the suction-pipe when the latter has the lateral movement. If desired, itmay be a fixed frame and extend upon both sides of the cut or opening of the boat made for the suction-pipe in cases where the latter has one motion only-viz., the vertical.

It is apparent that in many of the details of construction modifications within wide limits may be made without departing from the purview land spirit of my invention or sacrificing its advantages.

It is apparent that the block-and-tackle arrangement herein shown and claimed can be used with any form of suction-pipe.

Having thus described myinvention, what I claim, an d desire to secure by Letters Patent, is-

1. A suction-pipe for d redgers, having a jacket-protector, substantially as and for "the purpose set forth.

2. A s uction-.pipe for dredgers, having a j ticket-protector, substantiallyas described, and provided with a connection to the dredgerboat independent of the connection of y'the suction-pipe, as set forth.v

3. The combination, with a suction-.pipe having a universal joint at its con nection with the boat, of a jacket-protector for said suction-pipe, having a hinge and a swivel to permit it to move in both directions with the suction-pipe.

4. The combination, with a suction-pipe having' a u niversjalv j ointat its connection with the boat, of 'a `protectorfor the suction-pipe, having a h-inge to permit its vertical movement, and swivel in the -butt or leaf connected to the-.boat to permit its horizontal movement'.

5. A protector for suction-pipes, consisting of a jacket fitting upon the suction-pipe, ras set forth. v

6.' A protector for suction-pipes, consisting of a trough in which the suction-pipe 4is held, as set forth.v

7. Aprotector for suction-pipes, composed of a trough and a separate capl or top piece, and cleats or straps for uniting the parts..

8. The 'combinatiomwith al suction-'pipe jacket-protector therefoigot cleats orb y' s surrounding the jacket and forming supports for bearings, and an operating-shaft mounted in' said bearings directly over the suctionpipe. v

9. The combinatiomwith a suction-pipe and protector therefor hav-ing cleats or straps surrounding it, of bearings secured upon said cleats or straps directly over the suetionipe and a shaft mounted in said bearings, as set forth.

10. The combination, with a suction-pipe and a jacket therefor having cleats or bands around it, of a series ofv block-and-,taokle sheaves attached to said bands or cleats and IOO a corresponding series attached to a beam at one end to the pipe o1' cutter and rove overhead, and arope Pove through both sethrough the entire series, as set forth. Io

ries, as set forth. In testimony whereof I aix my signature in 11. The combination, with a suction-pipe presence of two Witnesses.

having a series of cleats 01' straps, of a series WILLIAM P. I-IIIMPHREYS. of sheave-blooks linked thereto, a correspon d- Witnesses:

ing series of sheave-bloeks suspended from a I. N. KALB,

era-ne or fra-me above, and a Tope connected C. S. DOMER.

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