US1110604A - Excavating device. - Google Patents

Description

W. '0. WEEKS.

EXGAVAIING DEVICE.

AFPLIOATION FILED FEB. 19, 1913.

'1 l 1 0,604. Pa p 15, 1914..

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WILLIAM 0. WEEKS, OF VANCOUVER, BRITISH COLUMBIA, CANADA.

EXCAVATING DEVICE.

' Specification of Letters Patent.

Patented Sept. 15, 1914.

Application filed February 1a, 1913. Serial No. 749,544.

To all whom it may concern:

Be it known that 1, WILLIAM C. WEEKS, a citizen of the, United States, and resident of the city of Vancouver, Province of British Columbia, Canada, have invented certain new and useful Improvements in Excavating Devices, of'which the following is a specification.

My invention relates to excavating devices, particularly of that type which employs a drag bucket as the excavating and transporting member.

The object of my invention is to better adapt such devices to certain special uses and. to improvethe same generally.

My invention comprises the novel parts and combinations-of parts which are hereinafter described and particularly pointed out in the claims.

In the accompanying drawings I have shown my invention in the form which is now preferred by me.

Figure 1 is an elevation showing a side view of an apparatus made in accordance with my invention. Fig. 2 is a detail showing, in side elevation, the carriage and its mechanism whereby it may be locked to the trackway and whereby the drag bucket may be locked to and released therefrom.

The apparatus which is the subject of my invention has been more particularly designed for dredging from a scowor float, but it is evident that it may be used for other purposes and under other conditions; particularly may it be used to advantage to excavatefrom beneath a platform which is supported in an elevated position.

The platform upon which the operatingmachinery is supported is, as illustrated, a scow, 1. This float has spars or frames extending outboard, or beyond its ends, at opposite ends, these serving as supports for the guides through which the main-haulline and the back-haul lines pass. At one end, the spar or frame 61, supports the pulley 62, outward from the end of the float, said pulley serving as a guide for the back-haul rope 6. This back-haul line extends to and is operated by a drum 60, upon the float. At the other end of the float, a spar or frame 8, extends outward and serves as the support for the lower end of an inclinedtrackway, represented by the beam 2. The upper end of this trackway is supported over this end of the float, as by a mast or frame work represented by the post 10. The inclined trackway 2, should preferably extend from a point near the water level upwardly and inwardly over the end of the float, so that the excavating bucket may travel up thereon, into position whereit may be dumped into a hopper, chute, o1- other receptacle, herein represented by the hopper 1.7. The

location of the trackway should be such that the bucket will clear the end of the float and the hopper 7. The bucket 4 may be of any type whichmay be found suitable forworking with the rest of the apparatus. The bucket herein shown is of an old type. The haul-back line 6 is connected thereto and extends beneath the float. It is therefore capable of drawing the bucket back beneath.

the float, so that its loading travel may be substantially the length of the float, or the distance between the line guides at each end of the float. The trackway 'beam 2, has, running thereon, a carriage 3, which has thereon a guide wheel 30,,about-which passes the main-haul line 5, to a connection with catch dog 33, to disengage it from the pin 31 when lever 32 is raised, thus freeing the carriage so that it may travelup the trackway. The carriage also has an arm or finger 34, depending therefrom and having its vlower end 37, curved and serving as a guide for the bail of the'bucket, when it is hoisted thereto. The lower portionof this arm 34, has a catch dog, or. lever 35, pivoted thereto and held against dropping down by a stop 36 upon the arm extends from an engine drum 50, over a guide pulley 51 at the upper end of the inclined trackway and then about the pulley 30 upon the carriage. a In operating this bucket will be presumed as resting upon and supported by the catch dog 35, being held thereby against sinking away from the cai riage. If the main-haul line be permitted to run out, the carriage will descend the in 34. The main-haul line 5, 7

device,;the bail. of the r pulled in, drawing the bucket forward and filling it. The carriage, during this time, is locked to-the lower end of the inclined trackway. l/Vhen the bucket is raised, the bail contacts with the catch 35, raising it i if out of the way, but permitting this catch to drop down into holdingposition as soon as the bail has passed. The further progress of: the bucket bail, will engage the releasing c lever 32 and free the carriage from the dog Y 33, whereupon, the pull upon the line 5 will start the carriage up theinclined trackway. This permits the bucket to drop, but, as the catch isbeneath the bail,the bucket is held by this catch and rises with the carriage. When the bucket gets-over the hop- *per 7, or whatever other receiving member is used, the bucket is dumped and then the .;carriage and the bucket suspended therefrom, runs down the inclined trackway until engaged by the catch 33. By extending the spars or fra-mes,'8 and 61, outward a considerable distance, it is possible tofdredge .over a distance much greater than thelength- 'ofith'e float. It is evident that the device herein describedfmay be used on dry vland' byprovidin'gme'ans for supporting the plat- 1form which 7 carries the machineryfabove 7 the material to be I excavated;

. VVhat lic'laim as my inventioni's;

1'.An excavating device comprising an elevated machinery-supporting platform, a drag bucket, a main-haul lineattached to the bucket, a back-haul line also attached to the bucket, a guide for the back-haul line located at one end of the platform to lead the back-haul line beneath the platform, a guide forthe main-haul line located beyond V the other end of the platform, and means for movingsaid latter guide upward and I inward over-that end of theplatform'.

I 2. An excavating device comprising a float' having a projecting guide-supporting member-at each'end, a drag bucket, a main-haul line secured to'the bucket, a back-haul line also-secured to the bucket, a guide for the back-haul line carried by said projecting member at one end of the float, a guide for the main-haul line and means for support- 'ing the said guide from said projecting member at the other end of the platform, to move" said guide in an inclined path over the end of said platform.

3. An excavating device comprising float, a drag bucket, a main-haul line, a back-haul line, guides for said lines supported from and beyond opposite ends of the float and adjacent the water line'and inward to point means for shifting the guide for the] maintrackway, and a guide for the main-haul line supported upon said carriage.

5. An excavating device comprising a r float, a drag bucket, a main-haulline, a back-haul line, means for conducting the back-haul line beneath one end of the float, an inclined trackway having its lower'fend beyond thevother end of the float and its upper end above thefloat, a fixed guide for v the main-haulline. at the upper end of the trackway, a carriage movable along the trackWay and carrying a guide for the mainhaul line, and means for locking thecar riage to thelower end of the ,trackway when desired; 7 .c i

6. An excavating device comprising a float, a drag bucket, a main-haulfline, a back-haul line,..means for conducting the back-haul line beneath one end of the float,

an inclined trackway having its upper end overone end of the float. and its lower end beyond that 'end'ofthe float, a guide for the main-haul line at the upper end of' the trackway, Ia carriage running upon the trackway, a guide for the main-haul line 7 carried upon the carr1age,m'eans controlled 7 by the bucket under the action {of the mainhaul line for locking the" carriage at the lower end of the trackway and for releasing s the carriage. 1

7. An excavating .devicecomprisin'g; a 5

float, a drag kbucket, a main-haul line, a

back-haul line, means for conducting the back-haul line beneath one end of the float,

a guide for the main-haul line and meansfor moving said guide for the main-haul linein a pathextending from a point outboard of the other end of the float to a point over the same endof, the float. V

In testimony whereof I have hereuntoaffixed my signature,l at Vancouver, British Columbia,this 12 day of February, 1913.- I 1 WILLIAM 0. -WEEKS. f Witnesses:-. is V 7 J. S. ARMSTRONG, Jr.,-j.

-. G, O. Wooowanm we et n i 1 Copies jot this patentmay be obtained for five centsveach, addressing the f Commissioner of Patents, 7

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