US1288514A - Excavating-machine. - Google Patents

Description

- L. P. C-LUTTER.

EXCAVATING MACHINE.

APPLICATION man Aumza, 1913.

melma Dee. 24, 191s.

ATTORNEY.

L, P, CLUTEH.

EXCVNNG MACHlNE.

ArPLenATxoN FILED Aue.29. 1913,

Patented Dec. 24, 1918 6 SHEETS-SHEET 2.

NN R, 5N @MJ Y. mvENTon wn-NEsses /v L.. e C'Lvum ExcAvAnNG MACHINE. 1

lAPPLICATION HLED [1126.29, 1913.

Patented Dec. 24,1918.

e SHEETS-SHEET 3.

ATTORNEY.

L. P. CLUTTER.

w EXCAVAUNG MACHINE.

l I APPLICATION FILEB Amma, m3. I 1,288,514.v Y Patented Dec. 24, 1918.

' 6 SHEETS-SHEET 4.

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L'P. cwen. ExcAvATmG [MACHINE:

.PucATloN-rxLeD AuG.2a,1913. y

Patented Dec. 24, 1918.

6 SHEETS-SHEET 5.

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. INVENTOR LEROY r. CLUTTER, or BEAVER FALLS, PENNsYLVANIa EXCAVATING-MACHINE.

Application filed August 29, 1913.

' Beaver and Stale of Pennsylvania, have invented certain new and useful Improvements in kllxcavatiiigf-lvlacliines, ot' which the following.r is a specification, reference -being had therein to the accompanying drawing.

This invention relates to excavating machines, and the primary object of my invention is to provide a self-propelled excavating machine with novel means, as hereinafter set forth, for easily and quickly con-4 trolling the excavating.,r operations of the machine, whereby the work can be. expedi'- tiously and economically performed.

Another object of this invention is to provide a machine of the above type with a novel boom that can be simultaneously moved in diilerent directions, and the excavating bucket projected beyond the boom to that extent that a piece of Work can be performed or considerable excavating accom plished without. repeatedly moving the ma chine..

further object of this invention is to provide a self-propelled excavator-that presents a rigid andalurable .structure capable of withstanding the rough usage to which machines of this type are subjected. particularly when rock, shale and other indurate material is encountered.

The, inventionin its broadest aspect inrolves` positive and reliable means for con trolling the scoopingr and loadingT of the excavator bucket and to this end have ldevised a .novel clutch and brake mechanism. together with structural elements which when combined provide a safe and highly eiiicient traction excavator.

The machine as invented comprehends the combination or assemblage ot cooperating; instrumentalities, which. broadly considered, are new as a general combination, and also comprehends various improvements in the construction of the elements themselves, and various subcombinations of selected elements.

The principal elements of the inventionrnamely, a vehicle: a turning head and its connections: a boom and its connections; a clutch mechanism. and a brake mechanism, will be hereinafter separably and speciically described in detail together with their asso- Sipecication of Letters Patent.

Patented Dec. 24, 1918.

serial No. 787,312.

ciated cooperating appliances and the ob- `iects accomplished from such a combination of elements.

In the. drawings: i l

Figure 1 is va side elevation of the eX- cavating machine, showing the shovel in an extended position by dotted lines,

Fig. 2 is an enlarged side elevation of a .l

portion of the vehicle, particularly the boom and its connections,

Fig. 3 is a ,perspective view of the boom and its connections,

Fig. l is an enlarged plan of the clutch and brake mechanisms,

Fig. 5 is a cross sectional view of the same'.

Figs. 6 and 7 are detail elevations of the clutch and brake mechanisms,

Fig. 8 is an enlarged sectional View of a controlling mechanism, and

Fig. 9 is a longitudinal sectional view of the same.

ln describing my invention by aid' of the drawings above referred to I desire to point out that l intend said views as merely illus tyative ot an example whereby my inven tion may be applied in practice, and l do not limit my 'claims to the precise arrangement and construction of parts indicated. The following description is therefore to be construed broadly as including substitute arrangements and constructions which are the obvious equivalent of those shown.

Considering the various elements of the invention in detail and in their order as enumerated above; the vehicle con'ipriscs longitudinal beams l and 2 connected by transverse girders or braces@ and 4, These velements constitute the trame of the ma; chine and said frame issupported by the forward wheels and rear Wheels 6, said rear wheels having` large gear wheels 7 meshing with small gear wheels 8Y driven from an engine 9 located upon the rear end of the frame. The engine 9 receives steam from 'a boiler 10 and in lieu of the engine and boiler any suitable operating means can f be resorted to. The engine 9 can be used Turning head and its connections. The frame of the vehicle is provided with Swiveled upon the bearings 16 and 17 l by pins 18` are connections 19 and 20 sup-v porting a mast 21 that is preferably made of channel bars arranged in parallelism.

.The pin of the connection 19 revolubly-supports atransverse frame 22 of a circularturnin head 23,. said head bein made of channe bars in order toform aorizontal grooved wheel to the periphery of which is attached by angle brackets 24 or other fastening means the ends of a cable 25. The cable 25 .extends rearwardly and-*has afew convolutions u on a horizontal flanged wheel 26, carrie by the upper end of a ver.l

tical shaft 27 journaled in bearings 28 and 29 provided therefor, the former being carried by the beam 15 and the latter located upon a transverse girder of the machine frame. v

The turning head is bracedby angle barsl passes under a revoluble she/ave 48 revolubly through thevmedium of a clutch mechanism that will be hereinaftei'consideied.

Pivotally connected to the upper. end of 'the arm 44 by a transverse pin 49 is a yoke 50, said yoke providing clearance for the boom 36.- The yoke -50 has the lower end thereof connected as at 51 to a bucket or scoup 52 and said yokeis rigidly held relatively to the bucket-by angularly disposed braces 53. The bucket52 is of the ordinary and well known` type having a drop door 54 and ascoup 55, the scoup 55 being connected by a stirrup 56 to the end of a cable 57 said cable passing upwardly over a sheave 58 revolubly mounted between the bearings 3T of the boom-36. The cable 57 extends downwardly and is trained under a sheavc 59 revolubly mounted. between parallel bars forming the mast 21. The cable passes upwardly over a resnoluble sheave 60 associated with the sheavc 48 of the upright- 11 and the operation of this cable will be hereinafter referred to in connection.with the clutch mechanism and the general operation The uprights 11 and 12 are connected by longitudinal frames 61 and said frames are connected to the beams 1 and 2 by supports 30 and 31, the latter being secured upon the .62. Mounted upon the frames 6l is a set of forward part of the turning head `and having its endsprotruding from the periphery of said head, whereby angularly disposed connectin yrods 32 can be connected to said turning cad. The turning head is also braced relatively to the mast 21 by angularlv disposed braces 33. l u

The boom aan'. its comwctions.

The lower end of the mast 21 has a transverse pivot pin 34 for the bearings of a boom 36. The boom 36 is preferably made of two parallel channel bars suitably connected together. The outer end ot' the boom has bearings 37 and adjacent Fto the outer end of said boom are brackets 39. ("onnectcd to said bearings and Said brackets are yV-shaped fran'ics 39 supporting a revoluble pulley 40 over which passes a cable 41. ne

end pt' the cable is attached to a pin 42 con. nectmg the rods 232 of the turning head. lhe opposite end of the cable is connected `to n pivoted block 43 carried by the outer bearings 63 and journaled in said bearings is a transverse shaft- 64. The shaft 64, adjacent to oneA endthereof, has a sprocket. wheel 65 and trained over said sprocket wheel is a sprocket chain 66 that extends to the en ine 9 whereby the shaft 6,47 is revolved w en the engine 9 is placed in operation. The wheel 65 and the 'chain 66 represent one form of transmission for sim-v ]mrting increment to the shaft 64.

Loosely mounted upon the shafty 64 are the confronting conicabshaped beveled gear wheels 6T and 68. said,wheelsl being held against longitudinal movement upon said shat'tkby collars 69.- Slidably keyed upon the shaft 6-1 and adapted to rotate therewith is a clutch member 70 haring the ends thereotl provided with couica'bshaped clutch heads 7 1 and 72 that are adapted to be alternately shifted into engagement with the gear wheels' 68 and 67 respectively. The clutch heads 71 and 72 are adapted to enter the gear wheels and frictionally enga fre the saine whereby either gear wheel can be made to revolve id iinison with the shaft. 64;

Loosely'v founte'd upon the clutch member 76 isa two-part shifting member 73 that is trunnioned in a Yoke 74, carried by the, up-

'per veind of a lever 75 pivotall)v connected. as at 76 tti a bracket 77, carried by the beam 1.r The liiter end of the lever isabiur- (fated, as at 78 and pivotullv connected h v a link 7 9 to a hell crank 80 that is pivotallv connected. as at 81 to a bracket S2 carried by the bealn 1. The bell crank H0 is pivotally connected. as at 83 to a link S4 that extends upwardly through :in opening of provided therefor in a platform H0. The platform 86 is supported b v angle brackets 87. carried b v the outer side of the beam l. The link 84: is pivotallv connected. as at No to one end of a treadle 89. said treadle being pivotally connected. as at il() lo a bearing 91. carried by the. platform S0. 'llu` opposite end of the treadle is pivotall v connected. as at 92 to adepending rod n3 that extends p through an opening 91 provided therefor in the platform 80. rl`he lower end of the rod 93has a nut 95 and a washer 9V and encircling said rod` between the washer 0G and kthe bottom side of the platform 86. is. a

coiled spring 97. This spring is employed to hold the trcadle normally horizontal or in an inactive position. When the forward end of the treadle is lowered the clutch head 71 is shifted into the gear wheel 0H and when the rear endot' the treadle is lowered the clutch head is shifted into en agement with the gear wheel 67. The weig t ot the link 84 is su-icicnt in one instance to restore the treadle 89 to a horizontal position and `in the other instance the spring 97 accom )lishes' the same result. 1

li eshing with the gear wheels 68 andli is a beveled gear wheel 98 mounted upon the end of a shaft 99 journaled in hearings 100 and 101. carried ily-transverse braces 1.02 connecting the trames 01 and the uprights 12. The brace 102 connecting the uprights 12 (see Fig. 4) has a vertical hearing 103 t'or the shaft- 27 and mounted upon said shaft i.` u worm whe/el 10ft meshing with a worm`105 of the shaft 90. The elements 9S to 105 inclusive represent a-conventional form ot transmission for placing the turning head 23 in operation and by having the gear wheel 9B meshing with both of the gear wheels 07 and ($8 it is possible to turn the head 23 clockwise or counter-eloekwise.sut-h movement being controlled b v the treadle H.)

atterthe. engine. 9 has been placed in operation. `With the clutch member intermedi ate the gears 67 andS. that is. out ot engagement with both wheels. said.wheels and thetransmission of the turning head '2-i remain inactixze while the shat't (3l is revolving. Mounted upon the frame ($1 is another set of bearings 106 and journaled in said hearings is a transverse shaft 107 having a large gear wheel 108 adjacent to one end thereof. rl`his large gear wheel meshes with a small geur wheel 10S) mounted on the shaft' Gl.

loosely mounted upon the shaft `107 vare drums 110 and 111. 'The cable 46 is attached to and wound upon the. drum 111 and the calde "57 is attached to and wound upon the drum110. The drums 110 and 111 have peripheral vflanges 112 to retain said cables upon said drumsI and said drums are hollow or inthe form of shells having short hubs 1125 providing clearance for gear wheels 114 that are keyed or otherwise mounted upon the .shaft 107 within the drums` 110 and 111. The outer ends of thc drumsl .110 and v111 have the inner walls thereof provided with circular racks 115 and the outer ends` of said druml have radiating spokesl 110 supporting brake wheels 117 and 118. said brake wheels being 1f-shaped in cross section.

Loosely mounted upon the shaft 107 and at the outer sides of the gear wheels 11% are the hubs 119 of brake wheels 120 and 121. The spokes 122 of said' brake wheels support. revolublc pinions 123 (see Figs 5 and 6). said pinions meshing with the gear wheels 114 and the racks 115 of the drums 110 and 111.

. I Brake mofa/masia..

The beams 1 and-2 ot the vehicle frame are connected by an augulariy disposed transverse angle bar 124 and adjustably connected or anchored to said bar. as at 125 are the ends of flexible brake bands 126 that extend over the brake wheels 117. 118, 120 and 121. said brake bands having shoes 127 to engage in the grooves of said brake wheels.

The beams 1 and`2 of the vehicle frame are provided with transversely alining bearings 1.28 and journaled in said bearings is a rock. :shaft 129. Ono end of thc shaft prtrudes above the platform 86 and has the extreme end ther-co1z provided with an o'perating lever 130. The lever 130 can be swung to rock said shaft and 'said lever is held in adjusted position through the niedium of' a segment rack 131, carried by the frame 61 and a latch 132., carried b v said lever. rThe elements 130 to 132 inclusive are constructed upon the principle of a throttle that can be locked in a desired position. i

The rock shaft 129 has cranks 133 and 1311 disposed at substantiall)v right angles with relation to cach other. The crank 183 is connected by a link 135130 the brake band 126 of the wheel 118. and the crank 134 is connected by a link. 1.36 to thc brake band 126 of the Wheel 121. ln consequence of this arrangement the movement of the rock shaft 129 in one direction applies a brake band to one of the wheels and releasesv the other brake bund and vice, versa.

Looselv mounted upon the roek shaft 129 is a sleeve 137 and the outer end of said sleeve. has a lever 138 similar to the lover can be locked in adjusted position.

The inner end of the sleeve 137 is provided i l with cranks 140 und 141, connected, similar upon which the yoke s\vings,.means for winding said cable to retract said pivotand yoke,

and a cable connected to said bucket and extending over the boom for operating;r the bucket and for'xnoving the yoke relatively lo said ineinber and further-for Controlling the `movement ofthe blu-kel independent of the shifting of the yoke pivot, a turning head arranged at; the upper end oi the nias,'ine:n1.-. for operating said turning head to swing said mast, boom, member and yoke l1orizontally, and ineens for swinging said mast independent of the means` for controlling the movement of the bucket.

o 5. In an excavating muchinefa portable support, e *boom having its lower portion pivotally connected therewith, an upwardly extending element. arranged above the boom and having its lower yend pivoted, a bucket support depending below the boom and adapted to enrry a bneketv'on its lower end,

menus carried by the upper end ol' said lelement; to provide a pivoi lor the upper end of said but-.kel support, said means capable ol' being shifted in the are of av circle, and nieans eonnected with Said element 'for shifting the saine to Yury. the seooping seope of tlieblwkelwithout shifting said porlnble support sinnlitaneously with the shifting of (hefboom on its pivot, and means tra veling over said boonr for operating said burkel'-, and means l'or controlling,r the operai ion of the bucket independenti of the shifting of said pivoted element.

In testimony whereof l allix niv signature, in the presence of two witnesses.

LEROY P. CLU'l-"llllt,

Vitnesses:

MAX H. SoLovuz, KATHERINE -Ewn'r'n

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