US933451A

US933451A - Excavating-machine.

Info

Publication number: US933451A
Application number: US47435809A
Authority: US
Inventors: Grant Holmes
Original assignee: Robert Holmes & Brothers
Current assignee: Robert Holmes & Brothers
Priority date: 1909-01-27
Filing date: 1909-01-27
Publication date: 1909-09-07
Anticipated expiration: 1926-09-07

Description

GfHOLMES.

EXUAVATING MACHINE.

APPLICATION FILED JAN. 27. 1909.

983,45 1 Patented Sept. 7, 1909.

3 SHEETS-SHEET 1.

,mnliw- It GRAHAM cm FNDYO-LITIIOGRAPNENS. WASHINGTON. D c.

G. HOLMES.

EXGAVATING MACHINE.

APPLICATION FILED JAN. 27, 1909.

Patnted Sept. 7, 1909.

3 SHEETS-SHEET 2.

mnnsw. a. GRAHAM 50., Pncrw-umuemvflina. WAsMmawN. D. c.

G. HOLMES.

EXGAVATING MACHINE.

APPLICATION FILED JAN. 21. 1909.

9 3 3,45 1 Patented Sept. 7, 1909.

3 SHEETS-SHEET 3.

N Emma Cnawvf/Yhn 83 witnesses g i E a K I al ke (Mug ANDREW. a. (mum cu. PMDTO LITNOGRAPRERS. wAsumumn. v. c.

UNITED sTATEsrArENT orruc.

GRANT HOLMES, OFDANVILLl-B, ILLINOIS, ASSIGN OR TO ROBERT HOLMES &

OF DALT'VILLE, ILLINOIS, A CORPORATION OF ILLINOIS.

Specification of Letters Patent.

Patented Sept. '7, 1909.

To all whom it may concern: 3 v

Be it known that I, GRANT HOLMES, a cit'izen of the United States, residing at Danville, in the county of Vermilion and State of Illinois, have invented certain new and useful Improvements in Excavating-Machines, of which the following is a specification, reference being had therein to the accompanying drawings. a

My invention relates to excavating machines, and the object of the invention is to provide an excavating machine with means to receive from the excavating dipper the material excavated thereby and to convey that material to a point at which it is de-' sired to dump the same, thereby obviating the necessity for using a boom of excessive length in order to dump the material excavated at a point sufliciently removed from the point of excavation; to provide a plurality of such means so arranged as to hecessitate a minimum amount of travel onthe part of the boomto move the dipper from the point of excavation to the point of discharge; to provide such means comprising a pa1r of conveyers, each arranged with; one" end ad acent to one side of the excavating machine and the other end extending-to a point removed therefrom; and to provide in combinatlon with theseconveyers a tilting receiving-pan or feederto receive thematerial from the excavating dipper and discharge the same in relatively small quantities upon the conveyer. I. V 7

With these objects in-view my invention consists in certain novel features and in con tain combinations and arrangements of parts hereinafter to bedescribed, and then more particularly pointed out-in theclaims.

In the accompanying drawings, Figure 1 is a side elevation of an excavating machine embodying my invention; Fig. 2 is an end elevation of the same; and Fig.3 is atop plan view thereof. v I

In these drawings Ihave illustrated one embodiment of my invention and have shown the same as applied to a dredge of ordinary construction. The dredge, as here shown, comprises a hull 1 having laterally extend ing spud braces 2 for holding the same against lateral or tilting movement, and which may be of any suitable construction. A boom 8 is mounted nearthe forward end of the hull 1 in the usual manner and is provided with an excavating dipper 4 of any suitable character.

It will beunderstood that the excavating machine or dredge herein shown is of a well known construction and is chosen merely for the purpose of illustration and that the invention may be applied to excavating machines of various characters. When it is necessary to dump the material directly from the excavating dipper 4: upon the bank, or at any other point of discharge, it is necessary to use a boom, 3, of excessive length in order that the material may be dumped at a poim sufliciently far removed from the point of excavation not to interfere with the working of the machine. This excessive length of the boom not only adds to the amount of power necessary for the operation of the machine, but renders the operation very slow. To overcome this difficulty two conveyers, 5, are provided, which maybeof any suitable character, but preferably consist of endless conveyer belts of any suitable construction,

nno'rrrnns,

each of which has one end mounted near one side of thehull 1 and theother end extend- 1 mg to a point removed from the point of excavation.

In the present machine these conveyers 5 are shown as having their lower ends supportedat one side of the hull 1, and

sidejupo'n which the lower end of the conveyer is supported. While this arrange-- ment may beparticularly adapted for use under certain conditions, it is by no means essential to the operat on of the mechanism andthe con eyers may be. arranged in. any .sultable positions.

V Inasmuch as the excavating dipper re- .moves a very large amount of material at I each operation thereof it is necessary to in- .terpose between the dipper and the convey- :ers 5 some device which will receive this large amount of material from the dipper and then discharge the same in smaller quantities, or in a relatively small stream, upon the conveyers 5. For. this purpose I have provided on each side of the hull 1 a tilting receiving-pan 6 havingitsouter end of a relatively large Width and having a substantially flat bottom. The side Walls of the receiving-pan 6 extend substantially parallel to a point some distance removed from the outer end thereof and then converge inwardly, as shown at 7 to form at the inner or discharge end thereof a comparatively small discharge mouth 8, which discharge mouth is so arranged that the material will be discharged therefrom upon the adjacent conveyer 5. Each of these pans is pivotally mounted near its forward end, preferably by securing the same to a transverse bar or axle 9 which is journaled upon a suitable supporting base 10. Any suitable means may be provided for actuating this receiving pan to move the same into an inclined position and thus cause the material contained within the same to be discharged upon the conveyer. In the present instance, however, I have shown each receiving-pan as provided with a frame comprising a vertically extending member 11 arranged on each side of the pan, the twomembers 11 being connected at their upper ends by a horizontal member .12. Arranged at one side of the frame is a fluid pressure cylinder 13 provided with suitable inlet and exhaust ports 14: and 15, respectively, and having the usual piston 16 and piston rod 17. To the upper end of the piston rod 17 is secured a double sheave 18, and, upon the adjacent end of the transverse member 12 of the frame is journaled a double sheave 1.9, while on the opposite side of the frame is journaled a single sheave 20.

Cables

21 and 22 are secured at one end to the frame and extend about the double sheave 18, thence about the double sheave 19, whence the cable 21 extends downwardly and is connected to one side of the tilting pan 6 near the outer or receiving end thereof. The cable 22 extends from the sheave 19 transversely to the pan and about the single sheave 20, thence downwardly and is connected at its lower end to that side of the pan 6 opposite that to which the cable 21 is connected. After the contents of the dipper have been dischargedupon the receiving end of the pan and the dipper has been moved from above the same, the motor fluid is admitted to the cylinder 13 above the piston 16, and, consequently, the piston, piston rod and double sheave 18 are moved downwardly and the outer ends of the cables and that end of the pan which is secured thereto are moved upwardly, thus moving the pan about its pivotal center and causing the material, which has been discharged thereon, to move toward the small discharge end thereof, from which it is fed in a rela tively small stream upon the conveyer.

As stated,the boom 3 carrying the excavating dipper 4E is arranged near the center of the forward end of the hull 1 and the two receiving-pans 6 are arranged one on each side of said hull and in such a position that the dipper can be swung above the same. To this end I have, in the present instance, shown the pans as supported upon a platform 23 forming a lateral extension of the deck of the hull 1. By this arrangement. of the receiving-pans and conveyers relatively to the boom and excavating dipper a very small amount of travel is necessary on the part of the boom to convey the dipper from the point of excavation to the dumping point, inasmuch as the arrangement is such that it is never necessary to move the same through an arc of more than ninety (90) degrees. Further, this arrangement enables the boom to be materially shortened and the small amount of travel covered by the short boom enables the dipper to be operated at a much higher rate of speed and a much larger number of cuts to be made by the dipper in a given space of time. Further, this arrangement enables the material excavated to be carried to any desired distance from the point of excavation without affecting the speed of the operation of the excavator. Further, this arrangement is such that it is not necessary to shift the hull of the dredge from one point to another to enable the material excavated to be discharged at a proper point, but the hull can be anchored in the center of the stream and need be moved only as it is necessary to advance the machine.

I have herein shown and described my invention as appliedto a dredging machine and have illustrated one particular form of the invention, but it will be obvious, as above stated, that the invention may be applied to machines of various characters, and further, that it is subject to a wide range of modification, and, I, therefore, wish it to be understood that I do not desire to be limited to the details of construction shown and described, for obvious modifications will occur to a person skilled in the art.

Having thus fully described my invention, what I claim as new and desire to secure by Letters Patent, is

1. The combination, with an excavating dipper, of a plurality of conveyors, and a plurality of receiving-pans, each of said pans being arranged to receive the material from said dipper and to discharge the same upon one of said conveyers.

2. The combination, with an excavating dipper, of a plurality of conveyers, a plurality of receiving-pans, each of said pans being arranged to receive the material from said dipper, and means for moving said receiving-pan's into inclined positions to dis charge the material therefrom onto the respective conveyers.-

3. The combination, with an excavating dipper, and a plurality of conveyors, of a receiving-pan arranged near each of said conveyers and having one end adapted to receive the material from said dipper and having its other end tapered to form a small discharge mou-th, and means for moving said receiving-pan into an inclined position,

whereby said material will be discharged therefrom in a relatively small stream.

4:. The combination, witha boom, and an excavating dipper carried thereby, of two conveyers, each having one end arranged near said boom and the other end supported at a point removed therefrom, and a tilting rece1ving-pan arranged on each side of said boom and adapted to receive the material from said dipper and to discharge the same onto one of said conveyers;

5. In an excavator, the combination, with a hull, a boom movably mounted on said hull, and a dippercarried by said boom,'of two conveyers each having one end supported near one side of said hull and the other end extending to a point removed therefrom, and a tilting receiving-pan arranged on each side of said hull and adapted to receive the material from said dipper and to discharge the same onto one of said said dipper and to discharge the same onto one of said conveyers, and means for moving each of said receiving-pans into an inclined position.

7. In an excavator, the combination, with a hull, a boom movably mounted on said hull, and a dipper carried by said boom, of two conveyers each having one end supported near one side of said hull and the other end extending to a point removed therefrom, a receiving-pan arranged on each side of said hull adapted to receive the material from said dipper and to discharge the same onto one of said conveyers, and independent means for moving each of said receiving-pans into an inclined position.

8. In an excavator, the combination, with a hull, a boom movably mounted on said hull, and a dipper carried by said boom, of a conveyer having one end supported near said hull and the other end supported at a point removed therefrom, and a tilting receivingpan arranged near said conveyer and adapted to receive the material from said dipper and to discharge the same onto said conveyer. V

9; In an excavator, the combination, with a hull, a boom movably mounted on said hull, and a dipper carried by said boom, of two conveyers each having one end supported near one side of said hull and the other end extending beyond that side of said hull opposite the side near which the first-mentioned end of said conveyer is supported, and a tilting receiving-pan arranged on each side of said hull and adapted to receive the material from said dipper and to discharge the same onto that conveyer having its end supported near the adjacent side of said hull.

In testimony whereof, I aflix my signature r in presence of two Witnesses.

GRANT HOLMES.