US877578A - Excavating-machine. - Google Patents

Description

' 7 PATENTED JAN. 2a, 1908. M. s. LONGNAKER.

EXCAVATING MACHINE.

APPLICATION FILED APR. 5.1907- 3 SHBETBSHEET 1 Milton JfLwzgim/iez A TfO/UVE 1/5 No. 877,578. PATENTED JAN. 28, 1908. M. s. LONGNAKBR. BXGAVATING MACHINE? APPLICATION FILED APR 5 1907 3 SHEETS-SHEET 2.

Mz'lzam 51307497201161;

A TI'TORNEYS ......H@A@ r3 7.

PATENTED JAN. 2a, 1908.

M. s. LONGVNAKBR. EXGAVATING MACHINE.

APPLICATION FILED APR. 5.1907. I

3 SHEETS-SHEBT 3- A TTOR/VE 1 5 EXCAVATXNG-MACHINE.

Brill/TON s. LONGRXUZEH, OI? PLEASANT HILL, OHIO.

Specification of Letters Patent.

Petenized Jar-1:28, 1908.

Application file-l April 5 190']. Serial l o- 3G6|615| To all whom "it may concern:

Be it known thirtl, j xroN S. Lose NAKEH, o citizen of the United Sides, residing at Pleasant Hill, in the county of Miami and Statc of Ohio, have invented snow and useful Excu vol ing-M uchi no, of which. rho following is a specification.

T his invention rein-res to excm'ot-ing' mnchines, and has ior its principal object to provide o mechanism ol very simple construciion for excavating trenches, railroad cuts, or for use in other work, the 1neclm.n ism being so arranged that both the digging and dumping operu-tions are under the control of a single operator.

A further object oi" the invention is to prov de o mechanism of this class in which the excavator bucket or shovel is suspendc liro1n an serial cable which may be readily adjusted for the purpose of nlfeiing' the digging point, and which mo be inclined to a greater or loss extent to permit the running of the illlcd scoop or bucket to the dumping: poin e.

A still iuithcr object of the irn'cntion is o. dcrruth l6, at the to pr vide a, mechanism o'l this class in which the bucket oiicrz'ding cable forms the sole means for supporting the bucket in both. digging and conveying position, slackening oi the cable permitting the bucket to move to dumping position so tho-l the bucket nny be allowed to run any desired While the operating cubic is held innl, on slackening i lnlckct inn-y be dumped.

With lhcsc and other objects in View, as will more fully horcim l hn' :mpenr, volition consists in certain novel features of construction and o'rrsngmnent. oi ports, hereinafter fully do accompanying drawings,

and

understood (but various changes in lhej form, proportions, size and nnnor details of the siruciuro may be made without departing from the 0|. the advantages 0. die invention.

in the 'accompnnymg drawings:--'-Fi;1nrc l is an elevation 01' constructed in occordzmce with the IHYOII- tron. Fig. 2 IS a detail VLQ'W oi. the carrier and scoop, the lslior being shown in its- I dumping position.

dist-once ich cable the contents of ihe the inrlbed, illusl rnted in the und porticnlin'l pointed out in the appended chums. it being spirit or sacrificing uny i on excavating mechanism Fig. I; is uni elevation illustrating o modification of Similar numerals of reference are employed to indicate corresponding parts throughout- The several figures of the drawings.

The mechanism as shown in Figs. 1 and 2 ol the drawing is designed for dig ing gravel or other material from a. bank w, and conveying the some to a dumping point y, and the mechanism is, therefore, arranged transversely with res 'iorl. 'to the cut, or in case of trench work, as in excavating for sewers, or canal work, thc mechanism may be arranged in the direction of the length of the cut, and provision mode for deflecting the cable in order to d ump the material at". one or other side oi the trench.

The operating mechanism is mounted on a suitable frame it), and includes an engine 11 and a pair of winding drums 12 and 13, these drums being indepemlent'l' connected to the engine, and suitable clutching and braking mcchonism of any ordinary type being employed to permit independent operation of said drums. .ln front of the drum is arranged top of which are two shenvcs l7 and 1%, over which are guided cables 12) and 20, respectively, the cable 19 running to the winding drum l2, and the cable 2i) to the drum 13,

At 'some distance beyond tin -dumping point 3/ s suitable anchor 22, to which the end ot' the cable it) is firmly secured, sn'd'this cable may be stretched. more or less tout, by the winding drum, so {but the cable may be presented at any desired angle.

Mounted on the cable 1?) is a. wheeled carrier 25, said carrierincluding a suitable frame 26 that depends below the line of the cable, and is provided with s hook or eye 27, from which is suspended on xcsvoting scoop or bucket '38, prcl'crobly by means of flexible connections. such as chains 29, and the point of connection of the chains with rho scoop or i bucket is to the rear of the vertical plane of the center oi gravity of the bucket when in a horizontal position, so that if the forward end of the bucket is left free, it will descend and allow the contents of the bucket to discharge b grzn'ily.

Extending forward from the side plates of the scoop is a pair of arms 30, and to the forthe invention.

I 'movement of the scoop along the cable 19 as .the scoop travels,by. gravlty toward the dumping point, this dumping oint being determined by a stop block 33 W iich'may be clamped'on the'cable 19 at any desired oint; and which serves by engagement wit the frame 26 to stop the movement of the scoop carrier.

At the forward ends of the arms 30 is a hook engaging one link of a chain 36 that extends over a guiding sheave 37 "carried by the frame 26, the chain being extended for 20 ward and connected to the cable 20 and whenthis chainis'adrawn up, the scoop is maintained in a horizontal or approximately horizontal position the exact angle being adjusted by placing one or more of thelinks of the chain over the hook 35, so that the digging edge may be properly presented to the material to be excavated.

In operation, the cable 19 is'first' adjusted by winding on the drum .12, and then the drum 13 is started into motion, winding up the cable 20-and drawing the scoop along un til .it"engages with' the material'to be excavated. The scoop is pulled into the mate-- rial until filled, and then the cable is slacked, gradually allowing the scoop to -travel by gravity toward. the dumping point y, the. cable 20 being meantime retained sufliciently taut to prevent -the'scoop frommoving to dumping position. When the frame I 26 strikes the stop block, the cable 20 is slackened, and as the chain 36 becomes slack, the scoop is overbalanced, and its forward-end drops, allowing the contents to discharge by gravity at the point y.. The drum 1-3 is again started into motion, the first effect of pulling on the cable 20 being to again restore the scoop to the-dig ingposition, after which the" scoop is pulled. a ong to receive another load.

In trench work'the anchor may be slightly deflected to one or other side of the trench for the urpose of dumping the dirt, or a suitable cable or guy may be connected to the cable 19 at any point between the anchor and the stop blockl'or the purpose of deflecting the line of supporting cable and permit dumping into wagons, or any point alongsidethe trench.

The foregoing description applies particularly to the use of the apparatus as a corn veyer and excavator in making cuts and in digging canals, trenches, and so forth, but it wi 1 be understood that other load holders. or carriers than the scoop can be employed when it desired to hgindle logs, stone, and so ing dru'm 12, so that the cable may be drawn taut or may be allowed to slacken for the purpose of receiving or delivering the load. The

0 ,erating cable 20'jiswound at one endon t e drum-13 and thence extends over a guiding sheave 50 carried by the mast '22, the end of the cable being thence conn'ected'to a carriage 25, which in the present instance is shown as supporting a log or. other load m,

although it-may be attached to the excavatmg machine, if desired. If the load is at the bottom of .the ditch, the cables are slackened until the carriage lowers to an extent sufficient to permit detachingltheload, after which the cables are drawn taut, and then on further stress on the operating cable, the load is carried up to the top of the bank or other point, where it is to be delivered. The. carriage runs-back to the starting point. by gravity.v

j ,I claim: 1. In ap aratus of the class described, an

inclined ca leor support, means for slacken-" ing and drawing the cable taut to alter its degree of inclination, a movable carriage arranged to travel on the inclined cable and movable thereon in one direction by gravity, and an operating cable connected to said load carrier and arranged to haul the same in the opposite direction.

2. Inan excavating machine, an inclined cable, a wheeled frame arrangedto travel on" said cable by gravity from excavating to dumping position, an operating cable 0011-;

nected to the scoop and tending to move the same from dumping to excavatin position,

and a loop-extending from the ca le over a portion of the frame to saidscoop, and being adjustably connected to the latter, the loop tending tomaintain the scoop in digging and cable is taut.

dirt conveying position when the operating 3. In an excavating machine, an inclined cable, a wheeled frame free to travel thereon and provided with an auxiliary guidin sheave below the cable, a ivotally mounte digging scoop hung from t e frame and tendmg to move to dumping position by gravity, an operating cable connected to the forward end of the scoop, and an auxiliary loop extending from the cable over the auxiliary ing cable to vary the digging point of said sheave and connected to the forward end of scoop.

the scoop to maintain the latter in digging In testimony that I claim the foregoing as and conveying position While the operating my own, I have hereto affixed my signature cable is taut. 1 i in the presence of two witnesses.

4. In an excavating machine, an inc inen 1 w T a supporting cable, a wheeled frame mounted l MILTOB thereon, a digging scoop hung from the frame, Witnesses: an operating cable for the scoop, and means NELLE C. HILL, for adjusting the inclination of the support- D. L. STRAYER.

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