US759764A - Excavating-machine. - Google Patents

Description

. No. 759,764; PATENTED MAY 10, 1904;.

D. H. SNYDER.

EXGAVATING MACHINE.

APPLICATION FILED JULY 13, 1903.

N0 MODEL. 6 SHEETS-SHEET 1.

W1 T/VESSES" fA/VENTOR ,illuriI No. 759,764.. PATENTBD MAY 10-, 1904.

1).. H. SNYDER.

EXGAVATING MACHINE.

, APPLIOATION FILED JULY 13, 1903. 30 MODEL. 6 SHEETS-SHEET 2 I fl r11 "No. 759,764, PATENTBD MAY 10, 1904* D. H. SNYDER.

EXGAVATING MACHINE.

APPLIUATION FILED JULY 13. 1903. H0 MODEL. 6 SHEETS-SHEET 3.

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PATENTED MAY. 10, 1904:. D. H. SNYDER- EXUAVAT'ING MACHINE.

APPLIOATION FILED JULY 1a, 1903.

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N0 MODEL.

WITNESSES.-

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' No. 759,764. PATBNTED MAY 10, 1904.

n. H. SNYDER.

BXGAVATING MACHINE.

uruouxon rmm JULY 13. ms. no MODEL. e SHEETS-$111231 s.

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Attorney.

I UNITED STATES Fatented May 10, 1904.

P TENT OFFICE.

DILLON H. SNYDER, OF EAST TOLEDO, OHIO, AS SIG-NOR OF ONE-HALF TO PAUL I. SAW YER, OF FINDLAY, OHIO.

EXCAVATlNG-MACHINE.

SPECIFICATION forming part of Letters Patent N 0. 759,764, dated May 10, 1904.

Application filed July 13, 1903. Serial lie- 165,384. (No model.) v

To all ZUILOTJI/ it may concern.-

Be it known that I, DILLON H. SNYD an, a citizen of the United States, residing at East Toledo, in the county of Lucas and State of Ohio,

have in vented certain new and useful Improvements in EXcavating-hlachines; and I do cleclare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it apro pertains to make and use the same.

This invention relates to improvements in excavating-machines.

The object of the invention is to provide a machine of this character which may be readily I 5 moved from place and which will be self-propolling, means being also provided whereby the operating mechanism may be rotated. to bringthe shovel into any position,and,further, to provide mechanism for actuating and controlling the shovel.

A further object is to provide an excavating-machine which will be strong, comparatively simple in construction, e'liicient, and easily operated.

2 5 With these and other objects in view the invention consists of certain novel features of construction, combination, and arrangement of parts, as will be more fully described, and particularly pointed out in the appended claims, reference being had to the accompanying drawings, in which Figure 1 is a side elevation of the machine. Fig. 2 is a rear end elevation with the engine boiler removed. Fig. 3 is a central longitu dinal sectional view. Fig. 4 is a horizontal sectional view on the line 4 t of Fig. 1. Fig. 5 is a top plan view of a portion of the frame, showing the upper beams of the same, the sliding cross-head, and the manner of connect- 4 ing the scoop-levers and operating-cables with the cross-head. Fig. 6 is a top plan view of the scoop,.showing the manner of connecting the operating-levers with the same. Fig. 7 is a rear view of the scoop. Fig. 8 is an enlarged detail side view of one of the drivinggears and the parts connected therewith. Fig. 9 is a similar view of the opposite side. Fig. 10 is a horizontal sectional view through one of the drive-shafts, winding-drum, gears, and

clutch mechanism carried by the same. Fig. 5 0 11 is a detail view of the clutch-plates. Fig.

12 is a similar view showing portions of the parts 53 and 56 and their locking connection.

Referring more particularly to the drawings, 1 denotes a suitable base or frame, preferably rectangular in shape and constructed from I-beams securely bolted together and supported upon front and rear wheeled trucks 2 and 3. Upon the base 1 is mounted a turntable or circular track 4:, on the outer side or 60 edge of which is formed an annular series of teeth 5.

Above the turn-table 4 is arranged a superstructure 6, the face of which comprises a turn table 1, Formed of I-beams 7 securely boltedtogether, and tothe under side of said beams are secured bearings,in which are journaled grooved rollers or wheels 8, which are adapted to engage and travel on the circular track or turn table 4 and to support the su- 7 periinposed structure 6. On the beams 7 is arranged a series oi transvcrsely-disposed I- beams 9, and on these beams near their outer ends are arranged two longitudinally-d isposed beams 10. On the beams 10 are mounted bearings 12, 13, and 1a, in which are journaled the drive shafts of the operating and propelling mechanism.

Below the beams 7 and securely bolted to the same are arranged a series of transverselydisposed beams 15, and above the beams 7 and supported thereby is a derrick-frame consisting of upwardly projecting forwardly inclined booms 16, upwardly-inclined rear bracebeams 17, connected to their upper ends by a 5 horizontal transversely-arranged beam 17'. Horizontally-(iisposed beams 18 connect the booms 16 with the beams 17.

i 19 denotes diagonally-arranged brace-beams connected at their upper ends to the upper 9 ends of the braces 17 and at their lower ends to the forward ends of the beams 7.

20 denotes upright beams connected at their upper and lower ends to the beams 18 and beams 7 respectively, and 21 denotes diagonally-arranged Mace-beams connected at their lower ends to the outer ends or the beams 7 and at their upper ends to the booms 16.

22 denotes the shovel or scoop, which may be of the construction shown in the drawings or of any other suitable construction, and it is connected to the lower end of a handle or arm 23 and is supported and adapted to be raised and lowered by two cables 24, the outer ends of which are fastened to the upper ends of plates or bars 25,which have a pivotal connection at their lower ends with the handlesocket of the scoop. The cables 24 are rove through pulleys 26, journaled in the ends of the booms 16, and through pulleys 27, journaled on the plates 25, thence through the pulleys 26 again, and then to a winding-drum 28, mounted on a transverse shaft 29, journaled in the bearings 14.

30 denotes a cable connected at one end to a link, which is pivoted to the upper end of the dipper-handle. The opposite end of the cable is wound upon a drum 31, mounted upon a shaft 32, journaled in the bearings 12.

33 denotes two arms or levers pivotally connected at their lower ends to the scoop and having a pivotal connection at their upper ends with a cross-head 34, slidably mounted on the beams 18. Cables are connected at their upper ends to the forward side of the cross-head 34 and pass over guide-pulleys 36, journaled on the upright beams 20, the lower ends of the cables 35 being connected to winding-drums 37, mounted on each end of a transverse shaft 38, journaled in bearings 39 on the beams 7 near the forward end of the machine. A cable 40 is connected. to the rear side of the cross-head 34 at about the center of the same and passes rearwardly over a guide-pulley 41, thence forwardly and downwardly,and is connected to a winding-drum 42, loosely mounted on the main drive-shaft 43, journaled in bearings 13 on the beams 10.

44 denotes a vertically-disposed shaft journaled in bearings immediately below the shaft 32 and forming the pivot around which the structure 6 turns. On the lower end of the shaft 44 is fixed a bevel gear-pinion 45, which meshes with a bevel-gear 46, mounted on a shaft 47, journaled in bearings below the beams of the base 1. On the shaft 47 is also mounted a sprocket-pinion 48, which is connected by a sprocket-chain 49 to a sprocket-wheel 50, mounted on the axle of the forward truck 2.

-On the upper end of the shaft 44 is mounted a bevel gear-wheel 51.

52 denotes a bevel gear-pinion loosely mounted on the drum 31, which is loosely mounted on the shaft 32, and on one side of the pinion is formed an elongated collar or annular flange 52, on which is keyed to slide a clutch-plate 53, having laterally-projecting beveled teeth 54, which are adapted to be brought into engagement with clutch-teeth 55, formed on the face of a spur gear-wheel 56, fixedly mounted on the shaft 32, so that when the clutch-plate 53 is shifted to bring the teeth 54 thereon into engagement with the teeth 55 on the spur-gear 56 the pinion 52 will be driven, which will turn the gear 51 and rotate the shaft 44 and pinion 45 to drive the shaft 47, motion from which will be transferred through the medium of the sprocket gears and chain to the axle of the front truck to propel the machine forwardly, suitable means being provided for reversing this mechanism and driving the machine backward. The reversing mechanism consists of a bevel gear-pinion 57, loosely mounted on the shaft 32 at the opposite end of the drum 31 and adapted to mesh with the gear-wheel 51. The pinion 57 is rotatably locked to the shaft 32 by means of a clutch 58, keyed to the shaft and adapted to be moved into and out of engagement with the pinion by means of a clutchshifting lever 59, which may be of any suitable construction. The arrangement of the pinion on the opposite side of the gear 51 will drive said gear in a direction opposite from that in which it is driven by the pinion 52. Consequently the propelling mechanism affected by the gear 51 will be driven in opposite directions, which will cause themachine to move backward, as will be understood.

6O denotes a friction-disk formed integral with one end of the drum 31 and arranged in juxtaposition to the spur gear-wheel 56. A clamping-band 61 is arranged around the periphery of the friction-disk 60, and on the working face of said band are fixed a series of wear plates or shoes 62.

63 denotes a bell-crank lever pivoted on the end of a short shaft 64,which passes through and is journaled in the spur gear-wheel 56. To one arm of the bell-crank lever is connected one end of the clamping-band 61, and the opposite end of the band is connected to the other arm of the bell-crank lever by an adjustable connection 65, preferably in the form of aturnbuckle. On the opposite end of the short shaft 64 and on the outer face of the gear-wheel 56 is fixed a short crank-arm 66, which is connected by a link 67 to a-block68, which is adapted to slide in a groove or guideway 69, formed in the face of the spur gearwheel 56. To the opposite end of the sliding block 68 is connected a lever 7 O, the opposite end of which is pivotally connected to a sleeve 71, slidably mounted upon the shaft 32 by means of a pin-and-slot connection with the same, as shown at 72. A coiled spring 73 is arranged upon the shaft 32 between the face of the gear-wheel 56 and the end of the sleeve, the tension of which is exerted to force the sleeve outwardly and away from the wheel. Ashifting device is arranged between the opposite end of the sleeve and the bearing 12, whereby the sleeve may be shifted or moved in toward the wheel 56. The shifting device consists of a disk 74, loosely mounted on the shaft 32 and havinga bevel or cam face which is adapted to engage the cam-face of a boss or projection 75 on the bearing 12, as shown, so

-to tilt the scoop.

that the turning of the disk 7 1 will force the same and the sleeve 71 inwardly, thereby raising block 68, turning the crank-arm 66, and rocking the short shaft 6 1, which will turn the bell-crank leve1g63, causing the same to tighten the band 61 on .the friction-disk and cause said disk and the drum 31 to .rotate with thespur gear-wheel and wind up the cable30 A handle or lever 7 6 of any suitable constructionis fixed to the disk 74 to turn the same. A spur gear pinion v7 7 is mounted on the opposite end of the shaft 32 and is in mesh with a similar pinion 78, loosely mounted on the shaft 38, on which are fixedly mounted the winding -drums 37. The pinion? 8 is adapted to be locked to the shaft 38 to turn the same by means of a cone frictionclutch 79,which is keyed to slide on the shaft 38 and to be moved into engagement with the gear-pinion 7 8 by means of a shifting-lever to rotate the shaft,38 and the drums 37 which will wind up the cables 35, thereby drawing the cross-head 3 1 forward and forcing out the lever 33 and the scoop 22, the arrangement of these parts being hereinbefore described.

Having described the propelling and operating mechanism connected with and driven by the forward drive-shaft 38, I will now describe that driven by the rear drive-shaft 29. 1 81 denotes a vertically-disposed shaft journaled in bearings formed'on the transverse beams 9 and 15. On the.v lower end of the shaft is fixed a spur gear-pinion 82, which meshes with the annular series of teeth 5, formed on the turn-table 1. On the upper end of the shaft 81 is mounted a bevel gearwheel 83, which is in mesh with a bevel gearpinion 84:, loosely mounted on the windingdrum 28,-wh1ch 1S 1n turn loosely mounted on the shaft 29 On one side of the pinion 84 is formed an elongatedcollar or annularfiange,

on which is keyed to slide a clutch-plate 85,

having laterally-projecting beveled teeth 86, which are adapted to be brought into engagement with clutch-teeth 87, formed on the sides of a spur gear-wheel 88, fixedly mounted on the shaft 29, so that when the clutch-plate is shifted to bring the teeth thereon into on gagement with the teeth on thegear-wheel the gear-pinion 8 1 will be rotated. which will rotate the bevel gear-wheel83and the gearpinion 82, causing the same to travel around the turn-table and turn the stri1cture6 in one direction. A reverse movementof the structure or a movementin the opposite direction is accomplished by means of a bevel gearpinion 89, loosely mounted on the shaft 29 at the opposite end of the drum 28 and in mesh with the bevel gear-wheel 83 at the opposite ranged on the shaft 29 and is adapted to be shifted bya forked lever 91 to lock the pinion 89 on the shaft 29 to turn therewith and rotate the gear 83 and pinion 82 in a direction opposite tothe former direction to reverse the movement ofthe structure 6. 1

On the end of the drum 28 adjacent to .the spur gear-wheel 88 is formed a friction-disk 92, around which is arranged a clan1 ing-band 93, the operation and arrangement of which is the same as that described in connection with the disk 60 on the drum 31, so that the description of the one will serve for both. The drum 28 being integrally connected to thefriction-disk 92 and driven by the gear 88 through the band 93 will wind up the cables 24:, thereby raising the scoop and forcing the same into the bank of earth, as willbe understood.

Any suitable means may be employed to shift the cl etch-plates and into engagement with the teeth on the spur-gears 56 and 88, that shown in the drawings consistingof horizontally-disposed shafts 9 1, mounted on the framework and having right-angularly disposed arms 95, in the ends of which are mounted friction -rollers 96. are provided with levers 97, whereby they may be rocked to bring the friction-rollers 96 on the arms into engagement with the clu'tclrplates 53 or 85 and .force the same into engagement with the gears 56 or 58, The teeth on the plates and 85 havebeveled .engagingfaces, so that upon release of pres sure on the plates the same will be thrown out of engagement with the clutch-teeth on the gears 56 or 58, as will be understood.

.On theend of the main drive-shaft 13 is fixedly mounted a spur-gear pinion 98, which is arranged between and is in mesh with both the spur gearwheels 16 and 88 to drive the same. On the ends of the shaft 4c3are fixed crank disks or wheels 99, to the eccentricallyarranged wrist-pins of which are connected the pitman-rods ofengines of any suitable type carried by the framework, butnot shown in the drawings, as they do not form, a part of the present invention. 1

On the shaft 13 is loosely mounted the winding-- drum 42, on which the cable is wound that draws the cross-head 34 and the levers 33 of the scoop back into place. One end of the drum is arranged to receive a cone frietion-clutch 100, which is keyed to slide upon the shaft 43 and is adapted to be brought into engagement with the drum 12 by means of a shifting device similar inconstruction to the shifting device used to tighten the frictionband 61 and consisting of a disk 101, loosely mounted on the shaft 13 and having a bevel or cam face which is adapted to engage the cam-face of a boss or projection 102-, formed on the bearing 13, so that the turning of the ried bythe disk 101, whereby the same may be operated.

104 denotes a boiler which may be carried by the rear end of the structure 6 and supported upon the beams 7.

From the foregoing description, taken in connection with the accompanying drawings, the construction and operation of the invention will be readily understood without requiring a more extended explanation.

Various changes in the form, proportion, and the minor details of construction may be resorted to without departing from the principle or sacrificing any of the advantages of this invention. 7

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

1. In an excavating-machine, the combination with a suitable supporting-base, of a superimposed structure rotatably mounted on said base, forwardly-inclined booms su pported by said structure, a scoop or shovel having a rigid upwardly-projecting arm, operating-levers pivotally connected to said scoop at their lower ends, a cross-head slidingly mounted in the upper portion of said structure and pivotally connected to the upper ends of said operating-levers and means for operating said levers and scoop, substantially as described.

2. In an excavating-machine, the combination with a wheeled supporting-base of a superimposed structure,rotatably mounted upon said base, means for rotating said structure and means for propelling said machine,booms supported by said structure, a scoop or shovel supported by said booms, means for raising and lowering and tilting said scoop, operatinglevers pivotally connected at their lower ends to said scoop, a sliding cross-head mounted in the upper portion of said structure and pivotally connected to the upper ends of said operating-levers, means for reciprocating said cross-head to project and retract said scoop, substantially as described.

3. In an excavating-machine, the combination of a supporting-frame, a dipper, a winding-drum having a friction-surface, a shaft on which the drum is loosely mounted, pinions loosely mounted respectively upon the drum and shaft, a sliding clutch-plate carried by the drum-pinion, a clutch element rigidly mounted on the shaft, means for shifting the clutch-plate into and out of engagement with the clutch element, a band-brake adapted to engage the friction-surface of the drum, an actuating element for the band-brake mounted upon the clutch element, means for operating said actuating element, gearing controlled by the pinions upon the drum and shaft, and a cable connecting the winding-drum with the dipper, substantially as described.

4. In a self-propelled excavating-machine, the combination with a wheeled supportingbase carrying a track, of a superimposed structure carried by a turn-table mounted to turn on said track, means for turning said structure in either direction, and means for propelling said machine forwardly or backwardly, a scoop or shovel supported in said structure and having a rigid arm, cables arranged to support said scoop, operating-levers connected to said scoop, a cross-head connected to the opposite end of said levers and adapted to slide in said frame and to project and retract said levers and scoop, cables arranged to reciprocate said head, and a cable arranged to tilt said scoop-arm and scoop, drive-shafts mounted in said structure, winding drums loosely mounted on said drive-shafts, clutch mechanism for throwing said drums into and out of gear with said drive-shafts and means for operating said clutch mechanism, substantially as described.

5. In an excavating-machinathe combination of a supportingframe, a dipper, a winding-drum having a friction-surface, a shaft on which the drum is loosely mounted, a pinion loosely mounted upon the drum, a sliding clutch-plate carried by said pinion, a clutch element rigidly mounted on the shaft, means for shifting the clutch-plate into and out of engagement with said clutch element, a bandbrake adapted to engage the friction-surface of the drum, an actuating element for said brake carried by the clutch element, means for operating the said actuating element, and a cable connecting the drum with the dipper, substantially as described.

6. In an excavating apparatus, the combination of a supportingframe, a swinging dipper, driving mechanism, a vertical shaft actuated by said driving mechanism, a horizontal shaft, a drum upon said horizontal shaft provided with a friction surface, pinions loosely mounted respectively upon the frame and horizontal shaft, a gear upon the vertical shaft in mesh with said pinion, a sliding clutchplate carried by the drum-pinion, a clutch element fixed to the shaft and adapted to be engaged by said clutch-plate, means for shifting the clutch-plate into engagement with said clutch element, a brake-band to engage the friction-surface of the drum, an actuating element therefor mounted upon the clutch element, means for operatingsaid actuating element, means for fixing the loose pinion on the horizontal shaft upon said shaft, and a cable connecting the drum with the dipper, whereby the latter may be manipulated, substantially as described.

7. In an excavating-machine, the combination of a supporting-frame, a swinging dipper, controlling mechanism for the dipper comprising a vertical shaft provided with a gear, a horizontal shaft, a drum loose upon the horizontal shaft provided with a loose gear in mesh with the gear upon the vertical shaft, a sliding clutch device carried by said loose gear, a fixed clutch element upon the horizontal shaft, means coacting therewith to rigidly connect the drum with the horizontal shaft, and a cable or like connection connecting the dipper with the drum.

8. In a machine of the character described, the combination of a supporting-frame carrying a trackway and a rack, a turn-table provided with rollers traversing said trackway, a swinging dipper upon the turn-table, controlling mechanism for the dipper and turntable comprising a vertical shaft having a pinion engaging said rack, and carrying a gear, a horizontal shaft, a cable connecting the dipper with the drum, gears loosely mounted upon the drum and horizontal shaft and meshing with the gear on the vertical shaft, a clutch element slidably mounted upon the drum-pinion, a clutch element fixed to the horizontal shaft and adapted to be engaged by said clutch element on the pinion, means for adjusting the said slidable clutch element, a band-brake to engage the drum, an actuating device therefor mounted upon a fixed clutch element, means for actuating said actuating element, means for fixing the loose pinion of the horizontal shaft upon said shaft, and driving mechanism, whereby the parts may be operated to simultaneously lower and raise the dipper and swing the turn-table in either direction, substantially as described.

9. In an excavating apparatus, the combination of a supporting-frame carrying driving mechanism, a turn-table mounted upon said supporting-Frame, a dipper having a projecting-arm, forwardly-inclined booms carried by the turn-table, a cross-head slidably mounted upon the turn-table, operating-levers connecting said cross-heads with the dipper, cables suspended from the booms and connected to the dipper, a second cable connected to the arm of the dipper, cables connected to the cross-heads, and sets of gearing operated from the said driving mechanism for winding and unwinding said cables, one of said sets of mechanisms being operatively connected to rotate the turn-table upon the su pporting-frame, substantially as described.

In testimony whereof I have hereunto set my hand in presence of two subscribing witnesses.

DILLON H. SNYDER. Witnesses:

DANIEL H. J AMES, H. J. Roi-Ins.

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