US1004549A - Excavating-machine. - Google Patents

Description

L. G. WOOD.

EXUAVATING MACHINE.

APPLICATION FILED 31:21: 9, 1910.

Patented Sept. 26, 1911.

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L. U. WOOD.

EXGAVATING MACHINE.

APPLICATION FILED BBP1'.9, 19101 1,004,549. Patented Sept. 26, 1911.

4 BHEBTS-SHBET 2.

g 6 In r SW54? witueooe 322 6%??? M j W mx L. U. WOOD.

EXGAVATING MACHINE.

APPLICATION FILED SEPT.9,1910.

Patented Sept. 26, 1911.

L. G. WOOD.

BXOAVATING MACHINE.

APPLIUATION FILED SEPT.9,1910.

1,004,549. Patented Sept. 26, 1911v 4 BHEBTS-BEBBT 4.

o hicle. As soon. as this occurs, as it requires LEONARD C. WOOD,

OF ALDEN, IOWA.

EXCAVATING-MACHINE Specification of Letters Patent.

Patented Sept. 26, 1911.

7 Application filed September 9, 1910. Serial No. 581,210.

To all whom it may concern:

Be it known that I, LEONARD G. Wow, a citizen of the United filates, residing at the city of Alden and State of Iowa, have in vented certain new and useful Improvements in Ilxcavating-lllachines; and I do declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the a'rt to which it appertains to make and use the some, refercnce being bad to the accompanyin drawings, and to the letters and ii ures (ii reference marked thereon, which orm a part of this specification.

My invention relates to improvements in excavating machines of the general construction set forth in'my application for patent filed April 16, 1910, Serial Number 555,817, allowed August 18, 1910.

My present invention consists of certain improvements over the original construction as ereinafter set forth in detail.

The machine comprises a vehicle upon which earth-loosening means, as plows, are mounted in advance of a scraper bucket which is normally locked against movement with relation to the vehicle, but which as it enters the dirt is automatically unlocked from the vehicle and al'iowed to travel thereon upwardlyv upon a track at the to of which it is automatically duinped, 'pr0v1 sion being made for automatically returning the bucket to its rearmost position upon the vehicle. In the construction as illustrated twocables are connected at one extremity with the bucket carriage and at their opposite extremities with the body of the vehicle at the front end of the latter. An anti frictional device is applied to the cable forward of the vehicle and this device is con nected with a suitable motor or engine, (not shown) comprising the power for operating the machine. As the power is first applied .the ull is upon the vehicle and also upon 45 the bucketcarriage, but as the carriage is locked on the vehicle against relative movement, the vehicle moves carrying the bucket with it until the bucket enters the dirt, when it is automatically unlocked from the vemore power to'moye the vehicle than the car'r'lage, thevehicle stops and the power applied to the cable'sacts upon the bucket r carriage and draws the same to the top of the frame where it is automatically dumped as heretofore explained. A coil spring is carried by a drum located at the rear of the machine. A cable wound upon this drum is unwound or paid out as the bucket carriage moves forwardly, resulting in rotating the drum and placing the coil sprirunder tension. The consequence is that by the time the bucket carriage reaches its forward and upward limit of movement, thespring is under strong tension and as soon as the power acting upon the cable ceases to act, the recoil of the s rin will return the bucket to its norma position, the carria e being automatically looked upon the vehic c by retainin hooks which are also springheld for bu er purposes. After the bucket reaches its forward limit of movement certain hooks are disengaged from its forward extremity to allow it to dump. As the bucket swings down to the dumping position it strikes against a butler device and. as it is moved rearwardly by the recoil of the aforesaid spring, it on ages a swinging stirrup-shaped support w ich lifts its fonward end and causes it to reinterlock with the supporting books so that it is in the proper position for reloading during theremainder of its rearward travel, and is ready for immediate use as soon as it reaches its rearward position upon the vehicle.

Having briefly outlined my improved construction, I Wlll proceed to describe the same in detail, reference bein made to the accompanyin drawing in w ich is illustrated an em odiment thereof.

- In this drawing: Figure 1 is a side elevation of my improved machine. sectional view of the vehicle portion thereof, with the bucket shown by dotted lines in a number of positions, the parts being s own on a larger scale. Fig. 3 1s a vertical on itudinal section of the rear portion of t e machine, said section being taken on line 3-3 Fig. 4. Fig. isa top the same. Fig. 5 is a front on elevation of the machine, or a view looking in the direction of arrow 5, Fig. 2. Fig. 6 is a sectional view in detail showing the bucket, its carlan view of Fig. 2 is a riage and the retaining bufler hooks carried i by the vehicle, the partsbeing shown on the same scale as in Figs-3 and 4. Fig. 7 is a sectional. view in detail taken through the bufi'er hook mechanism.

The same reference characters designate the same parts in all the views. L

Let the numeral 5 designate the lower rectangular framework or body of a vehicle bj'v'sii'rlly as the chain sine which ad shown in the drawing, is sup ported by ground wheels 6. Upon this veiicle are mounted plows 7 which are pivotally connected at their forward extremities to the vehicle body as shown at is, their rear pontions being connected with links 9. The opposite extremity oi": the link of the central plow is pivotally connectel with a segmented wheel 10 journeled on a transversesliaft 12, while the links connected with the other plows are pivotuliy connected with rock arms 4 carried by the shaft 12, the rock arms being properly distributed upon the shafttor the purpose. The forward extremity of the frame 5 may raised and lowered by means of a. nut 13 mounted on a. screw 14 adapted to engage from below the top 15 of an urch-sheped forward frame member 17. be operated by a hand spike enter openings 18, or 19 wound thereon, as may be desired.

As the frame travels downwardly the plows which are mounted thereon travel therewith. It is. however, important that the plows shortld be supported in such a manner that they may move downwardly adapted to by means of a. cable faster than the frame, and in order to 9.0-

complish this I employthe following mech anism. bell crank lever 20 is fulcrumed on the front part of the frame as shown at r 21, the short arm 22 of this lever having one extremity of a chain as shown at 24, the opposite extremity of the chain being connected with a bolster 24 its shown 8st 25. The long arm 26 of this lever-is pivotelly connected as shown at 27 with the forward, extremity of a rod 28 whose, opposite extremity is pivo'telly eonneoted usushown a; with a. link 30, which is the forward link of a short chain 31, the refirmost link 32 being pivoted to the segmental wheel 10 as shown at 33. 'lhese links are double and straddle the periphery 'of the wheel 10 and the link pins34i engage the periphery of the wheel and actuate the latter together with the shaft 12 when the rod 28 is moved rearwardly. Now as the nut 13 is lowered upon the screw 1d, the forward exticmity of the framework or body of the nhicle moves downwardly by gravity carrying the bell crank lever 20 therewith. Assuming that the chain 23 is taut at the beginning of the downward movement, this chain would have a tendency to slncken,

since its lower end is connected with the bolster 24, which remains stationary. Under these 'reumstancesthe lows move downtens since the bell crank lever is allowed to turn freely on its fulcrum, and the plows move than the frame since the downward movement permitted by the slackening of the chain 23, whereby the bell crank lever is released and its long arm allowed to move T his nut may i of the carriage connected as shown down faster in response to the pull of the rod 28, is a downward movement of the plows in addition to that which they would naturally have ii. they traveled only with the frame. It will be understood that this additional movement permitted by virtue of the feet that the forward extremities of the plows arepivotnlly connected with the framework of: the vehicle. Again during the upward movement of the frame resulting from turning the screw 14 in the op osite direction, the chain 23 being tnut W1 I pull upon the short arm oi the bell crank lever and netuate the lever, its'long arm being caused to move forwardly, and actingupon the segmental wheel 10 through the instrumentality of the rod 28, will cuusellle plows to rise faster than the upward movement of the frame. The upper extremity of the arm 26 of the bell crank lever is connected by means of a cable 35 with the forward extremity of the Vehicle frame as shown at 36, in order to limit the rearward travel of thelon arm 26 of the said lever.

' Normal y locked against movement on the vehicle is e carriage 37 upon which is mounted a sore er bucket 38, the rear extremity of the ucket being trunnio led us shown at 39 on deymnding wshn'ped rackextremities are secured ets 40 whose upper be'rs'41 of the cal-ringe to the parallel s de.

-These sidefbars fire connected in front on 23 connected therewith rear by shafts r axles 42 upon whose extremities are journ led wheels43 which travel in tracks 44 mounted on the vehicle and stntionar therewith. These tracks have bottom orizontal members 45, upwardly and forwardly extending portions 46 and top horizontal portions 47.

To the central portion of the rear axle 42 theforwurd extremity of a cable 49, which is connected with a drum 50 fast on a shaft 51, to which is connected as shown at 52 the inner extremity of a power spring 53 whose opposite extremity is connected as shown at 54 with a curved bar 56 curried by the side bars 57 of the vehicle body. As shown in the drawing there are two housing members 55 (see Fig. 4E), and consequently two power springs 53 for the return of the bucket carriage, the said springs being placed under tension as the carriage moves forwardly upon the tracks 44. i

To the forward axle 42of the bucket can riuge 3'? are connected, as shown ..'1 58, the

i the extremities U'S'of two retaining books 69 having shanks "70 slidable in frames 71, the said shanks being shouldered as shown. at 72 to engage a plate 7 3 slidahle uponrods 74;. and the rear end 7.?

Between the plate In of this frame is located a spiral. spring 76, which is compressed and forms a butler the bucket carriage returns to the rear extrcmity of the machine under the intlucnce of the coil springs 53. The rear portions of? the pawls 66 are shaped to enter recesses 77 formed in thrxforward extremities of the retaining hooks, these hooks having depend ing offsets 78 adapted to engage the shout ders or offsets 07 of the awls 06 when the carriage is locked on the rams as illustrated in Figs. 1 and 6.

The retaining hooks 69 are 80 connected with the pawls 66 that a pull upon the bucket carriage would cause the pawls together with the shaft 65 upon which they are mounted to rotate, thus releasing the carriage from the vehicle.- Attentionis ,,,called to the fact that the rear extremities of the retaining hooks 69 are pivotally mounted on a rod 79 whose extremities are sup ortcd by the rear ends of the members of 1; 1e track 44.

. In order to prevent the do s from moving upwardly and releasing the iucket carriage in response to the pull of the cables 59 be fore the bucket enters theicarth, the carriage is provided with springnctuated rods 80, whose rear extremities-fit protrude through lugs 82mounted on thecarriage, the protruding ends 81 occupying positions just above the forward extremities of the ponds 06. The pawls are normally held in position to interlock with the rear extremities of the rods 80, by a springBB, one extremity of which is connected with a crank arm 84 fast on the rock shaft 65. i

The forward extremities of the rods are connected as shown at 86 with trianguliar-shaped plates pivotally mounted on the framework of the carriage as shown at 87. One corner of each of these plates is iivotally connected as shown at 88 wit a bucket are located at the rear portion there of so that it is necessary in order to main tain the bucket in the upright position or in the position to hold its load, that its forward extremity be sup or! ed.

When the mac line is at work, and as s on as the bucket enters the earth, its forward end is drawn downwardly with sufficient force, which acts upon the books 89, to turn the triangular plates 85 and move the rods 80 forwardly sufficiently to disengage their rear extremities 81 from the ,pawls 60. As soon as this occurs the bucket carriage will be released from the vehicle and the pull cables-59 will act u on the bucket carriage to more the same orwardly upon thevehicle,the carriage following the track 4A: as hereinafter explained.

Each rod 80 is brorided with a stop 92 which is engaged by the rear extremity of a spiral spring 93 whose forward extremity engages a lug 94 fast on the bucket carriage The rods 89 slide freely in the lugs 94, cohscquontly the rods are moved forwardly to disengage the pawl 66 for the purpose of unlocking the bucket carriage from the hicle, the springs 93 are placed under tension, but as soon, as the carriage is released and travels forwardly and upwardly on th track with its load, the rods 81" will be re turned to their normal position. As soon; however, as the carriage is released from the vehicle and the pull of the retaining hooks (59 u on the pawls tifi ccases, the said pawls will e returned to "l'liE-ll' normal position by the recoil of the spring 83 acting upon the awi.-carrying rod 65. a

After the bucket carriage has reached its upward limit of movement upon the track members 44, it successively assumes the positions 1, 2 and 3 indicated by dotted lines in Fig. 2. Just as the carria es reaches its upward limit of movement, the bucket-su porting hooks 89 are disengaged from the pins 91 and the bucket then in the position 1, but immediately swings upon its trim-- nions 39 to thedum in position or position 2,, its load being isc arged intoa travelingpan 95 mounted upon a transversely arranged conveyor frame 96, having an. endless track 97 formed in its opposite sides to receive anti-frictional devices '98 carried by the pan, the latter beingjointed as shown at 99 to follow the abrupt turns 1.00 of the opposite extremities f the conveyor frame.

When the buckei 2, it'strikes against a butter plate 101 mount ed upon the lower extremities of rods 102 and engaging springs 103 carried by the hock-Shaped, extremities 104. of said rods As soon as tllelbuckt is dumped; the power applied to the pull cables 59 ceases to act, and the bilcket carriage together with the bucket begins its return movement. The bucket after engaging the buffer 101 imme 1 Lil has assumed the position diately engages the upper transverse memher 105 of a stir-raps aped supporting device 106, the lower extremities of: the rods 107 of this device being connected to turn freely on the shaft 12. As thebucket continues its rearward movement, the device 106 moves with it to the dotted line position in Fig. 2, since the bottom of the bucket is provided with a transverse stop plate 108 which engages the member 105. Consequently the forward ortion of the bucket ridesyupon and is 1i ted by the swinging stirrup-shaped device 106 until the pins 91 are in position to enga e the lower extrem'r ties of the supporting looks 89 as shown inposition 3 in Fig. 2. The device 106 is then stopped Tliltltll farther rearward movement by a stationary member 109 having a part 110 lying in the path of the rod 10?. The device 106 then returns to its normal posi tion ready to act upon the bucket when the operation is repeated. After the forward portion of the bucket is again interlocked with the supporting hooks 89, the bucket carriage continues its rearward movement upon the track members 44 and under the influence of the springs 53, until the carriage is again interlocked with the vehicle through the instrumentality of the retaining buifer hooks 69. Attention is called to the fact thakas the bucket carriage returns to its rearward limit of movement, the rear portions of the pawls lifi'strike the hook-- shaped extremities of the retaining books 69, causing the said extremities to rise sulliciently to allow the rear ends of the pawls to enter the recesses 77, the said pawls striking WltliSOlllG force against the rear walls 112 of said hooks. The buffer spring 76, however, yields suiiiciently to prevent any injury to the mechanism under the circumstances stated.

In order to operate the pan 95 for the discharge of the dirt delivered to it by the bucket after each discharge, provision is made for causing the receiving pan to travel upon tbe' transversely arranged conveyor frame 96, from the dotted line position shown. in Figs. 1 and 2, to the full line )OSl' tion shown in Figs. 1, 2 and 5, and the mechanism adapted to accomplish this purpose will now be described.

Centrally journaled in the conveyor frame 96 is a transverse shaft 11;} u on the center of which is mounted. a spool or' drum 11 1 around. which passes one or more convolutions of a cable 115, one extremity of which is secured to one end of the pan 95 as shown at 116, while its op site extremity is secured to the opposite end of the pan.

.At the outer extremity of the shaft 113 beyond the framework. of the conveyor, is located a removable drum 117 around which some a cable 1.18, the two runs of the cable rst engaging pulleye 1&9 mounted on shaft 123, from which they pass to pulleys 119 mounted at the extremitles of the long arms 120 of hell crank levers 122 fulcrumed on the shaft 123 and having their short arms 124 colmected by means of spiral springs 125 with stationary members 126. This cable 118 extends rearwardly, passing over guide pulleys 150, its extremities being connected with the rear part of the carriage as shown at 127 and 128 respectively. Hence as the carriage travel? upon its track, it actuates the cable 118 ior operating the pan 95, and the arrangement is such that during the forward travel of the bucket, the pan is returned from its position underneath the conveyor frame to its upright position ready to recciye the contents of the loaded bucket as soon as' the latter is in position to dump. Again as the bucket carriage moves rearwardly, the operating cable 118 is moved in the reverse direction, and the pan is moved from its upright position to the inverted. position on the con''eyer frame.

in case it should be desired to cause the pan )5 to travel around the opposite ex.- treinity of the conveyor frame, it is only necessary to remove the drum 11.? from the s uared extremity of the shaft 113 upon w ich it tits, and reverse its position, whereby the depending runs of thecahle 1.18 will be crossed at he forward end of the machine, thus caudiug the spool or drum 1.1? to travel in the reverse direction.

When the bucket carriage reaches itsforward limit of travel, stops 129 thereon engage buffer members 130, the shanks ot the said members being slidahle in frames 131 in which are located springs 132 which yield in response to the thrust of the bucket carriage, since the shank of each-butler within the butter frame 131 is acted on by a stop 13 i carried by the shank 135 of the boiler device.

he transversely arranged conveyor frame is so )ported upon uprights 136 mounted on the root extremity of the vehicle body. These uprights are equipped on one side of the pan. 95 with a laterally arranged housing plate 137, to keep the dirt from falling over the adjacent side of the flexible an 95. An additional housing plate 138 is also mounted on the opposite side of the frame for the same purpose. The plate 137 00: copies a higher position than the plate 138, owing to the fact that the discharge of the dirt rom the bucket when in the position 2 (see Fig. 2) would have a tendency to throw the dirt over the side of the pan adjacent the housing plate 137.

Attention is called to the fact that the o crating cable 115 connected with. the flexib e pan 95, passes around pulleys 1.39 located at the opposite extremities of the conveyor frame. Therlraft cables 59 pass over guide pulleys fifi mounted on a shaft 123 located at the upper extremity of the forward or tion of the upright frame, the said pul eys being mounted on the shaft Attention is called to the fact that the butter action of the retaining books 69, is permitted by virtue of the fact that thishanks 70 of the hooks are slotted as shown at .A, to receive a guide )in B carried by the frame 71. These buffer books 69 are prevented. from swinging forwardly too far as the bucket carriage Suddenly returns to its rearward limit 0 movement, by a bent bar 142 to Wlose extremities are connected spiral sprin u 143, the opposite extremities of the springs being connected with the adjacent portions of the track members 44.

From the fore, 'oin description the use and operation of my; nproved machine will be readily understood. Assuming that the bucket czirriagie is in its normal position at the rear end of the vehicle frame and locked upon the vehicle as illustrated in F l and 6, as power is applied to the draft cable 59, there is a pull both upon the vehicle and upon the bucket carriage. However, as the carriage is located upon the vehicle, the power applied to the draft cable causes the vehicle to travel. forwardly until the scraper bucket 38 enters the'earth which has been loosened by the plows 7. As soon as the forward end of the bucket enters the earth the contactwith the latter has a tendency to pull the forward end of the bucket downwardly, and this movement acting upon the support ing books 89 and the triangular plates 85, serves to actuate the rods 80 sufficiently to release the pawls 66, whereby the latter are allowed. to move upwardly to the dotted line position in Fig. thus disengaging the carriage pawls from the buffer hooks. Now as less power is required to cause the loaded bucket and its carriage to move forwardly "on the track, than to move the vehicle, the

"latter ceases to move and the power of the draft cable acts upon the carriage to cause it to move to its forward and uppermost posi tion upon. the framework of the structure. As sobn as this occurs the supportin books 8.) are disengaged from the bucket by coming in contact with the rod 126. The bucket then turns upon its trunnions to the position 2 in Fig. 2, allowing its contents to drop into the pan 95. The bucket will then begin its rearward movement with the carriage by virtue of the recoil of the springs 53, which hauscs the cable 4.) to be rcwound *upon the drum 50. Just as the bucket and carriage connocnr'e their rearward] movement, the bzukct first slrikcsa butler bar lfll and immediately tbrrrul'tor engages the transverse top member of the U shaped swinging trau'ic 106 which moves with tho lllll'liUl and siu|ullnuoously lifts the lallrr lo the dotted line position designated 3 in Fig. 2, vvborel'iy the pins 91 ot' the bucket are caused to reiingagc the hookobaped extremities of the support ing; books 89. The bucket and carriage then continue theirrearward travel and when. they reach their rearward limit of movement the pawls (i6 interlo k with the retaining bu'll'er books (it) and the bucket and carriage are in position to repeat the operation just described.

Having thus described my invention, what. I claim is:

- 1. The combination with a vehicle, of a bucket mounted to travcl back and forth thereon, meanavfiir imparting both the forward andrcarward travel to the bucket,a pan arranged to receive the material from the bucket and to reciprocate transversely on. the vehicle to discharge the material so received, a cable liming; both extremities connected with the bucket, and a drum reversely connected inoperative relation with the pan, the cable being connected with the drum to cause the latter to rotate in either direction depending upon the position of the drum, substantially as described.

2. The combination with a vehicle, of a bucket mounted to travel back and forth thereon, means for iu'iparting both the forward and rearward travel to the bucket, a pan arranged to receive the material from the bucket, an end less track upon which the pan is adapted to travel in reverse direc tions, the pan while at one limit of movement being in position to receive the material from the bucket and at its other limit of movement in an inverted position for discharging the matvrial so received, and means connected with the pan and operated by the travel of the bucket for imparting travel to the pan in reverse directions, substantially as described.

3. The combination with a vehicle, of a bucket mounted to travel back and forth thereon, means for imparting both thcforward and rearward movement to tholuuzkct, a pan arranged to roccive the material from the bucket, a loop shaped track on which the pan is adapted to travel in reverse (ii-- rcctions, the panwhilc at one limit of movemrnt being in position to receive the material from the bucket, and while at its opposite limit of movement in an inverted position for discharging the material so roceivcd, and means connected with the pan and (nmratcd by the lravcl of the buckct for alternately bringing the pan to tbc receiv ing and discbar ing; positions, substantially as described.

4. The cmnbillullon with a vehicle, of a carriage mounted to travel thereon, a bucket trunnionrd on the carriage, moans mnlllllcd on the carriage and dctucbablv (-onucrlod will) the forward extremity of the bucket for -mpportin s, the latlr-r in the upright,

position, means for releasin the said sup )orting means from the hue mt to allow the latter to dump, a swingin frame adapted to engage tlnhucki-it Hillel c limping when the carriage travels rearivardly for restoring the connection between the bucket and the supporting means, and means for limiting, the rearward movement of the frame, sub stul'itiully as described.

5. The combination with. a vehicle, of u carriage mounted to travel tlwreon, a bucket trunnioned on the carriage, means connected with the forward part of the bucket for supporting the letter in the upright post tion, menus for releasing the supporting means from the bucket to allow the latter to dump, and u swinging frame mounted upon the vehicle and adopted to uctimtc the bucket the hitter travels rcurwurdly for automatically restoring the connection between the bucket and said supporting means.

6. The combination with a vehicle, of a carriage mounted to trnrcl thereon, a, bucket trunnioned on the carriage, means mount ed on the carriage and detnclmbly connegated with the forward part of the bucket for supporting ,the latter in the upright position, and a swinging frame mounted on the vehicle for autoimiticully restoring the connection between the bucket and said supportin means.

7. T e combination with u vehicle, of l curring lnountcd to travel thereon, a bucke trunnioned on the carriage in the rcur'ot its center (if gravity, menus mounted on the carriage and dctuchuhly connected with the forward port of the bucket 'lor supportii'ig the hitter in the upright position, and means mounted on the vehicle for :uitoumi'ically restoring the connection between "the bucket and said supporting moans, sold menus comprising a swinging frame arranged. to lift the forward purtof the bucket us the letter moves rearwurdiy, after dumping, into interlocking engagement with suid supporting means.

8. The combination with a vehicle, of a carriage mounted to travel thereon, u bucket trunnioned on the carriage, means mounted on. the ci rriuge and detuchuhly connected with the forward part of the bucket for supporting the letter in the upright position means for relcnsin the said so ort.

letter to dump, and xnhuns for restoring the connection between thelmcket and said supporting means, comprising a U-shaped swinging frume which the bucket engages nl'lerdnmping.

9. The comhiuntion with. u vehicle, of a, carriage mounted to travel thcreoii, a bucket trunnionetl on the carriage in the rear of its center ol grmity, means mounted onthe carriage nod dchurhnbiy connected with the lug means from the bucket to allow the bucket for supporting the latter in the up right position, means for releasing the said supportil'ig means from the bucket to allow the latter to dump, and u U-shnped depending butter adapted to engage the forward extremity of the bucket as it turns on its trunnions to assume the dumpin position.

1.0. The combination with a ve iicle, of a mirringe mounted to travel book and forth. thereon, moahs tor im mrting forward movement to the carriage, and a buffer mounted ut the fol-word extremity of the vehicle and provided with a forked extremit opted to engage tho front axle of the i'n'mge as the letter reaches its forward. limit of travel, substantially as described.

ii. The combination with a vehicle, of a. carriage mounted to travel thereon, means For normally locking the carriage against movenu-nt in respect to the vehicle, 'said means including butler hooks nivotnlly mounted on the vehicle and adopted to interlock with pnwls pivot-Lilly mounted on the carriage, and means mounted on the carriage for normally locking the penis against turning to release the books.

15?. The combination with a vehicle, of o.

bucket nwunted to travel book and forth thereon, means for imparting both the forwe rd and rearward travel to the bucket, a pen arranged to receive the material from the bucket and to, reciprocate transversely on the vehicle to discharge the material so received, a cable having both extremities connected with the bucket, and a drum revorsibly connected. in operative relation with the pun, lllB -(llillifi being connected with the drum to cause the latter to rotate in either dircction depending upon the position of the drum, substantially as described.

T3, The combination with u vehicle,of a bucket mounted to t avel buck and forth thereon, means for imparting both the forward and rearward travel to the bucket, 21 pan arranged to receive the material from the lmcket and toreeiprocnte transversely on the vehicle to' discharge the material so received, it cable having both extremities connected with the bucket, thesaid cable be ing connected in operative relation with the pain to cause the latter to reciprocate, and spring actuated arms mounted upon the vehicle and carrying rollers over which the cable passes, the said arms being arranged to take up the slack of the cable, substantially as described.

14. The combination with a vehicle, of a bucket mounted to travel back and forth thereon, means for imparting both the for ward and rearward travel to the bucket, a pan nan-auger]. to receive the material from the bucket and to reciprocate on the vehicle to discharge the materiel so rmeivcd, a cable having-both extremities connected with the bucket, the cable being also connected with the pan to cause the latter to reciprocate, substantially as described.

15. The combination with a vehicle, of a bucket mounted to travel back and forth thereon, the bucket being trunnioned, means detachabl connected with the forward extremity o the bucket for supporting the latter in the upright position, means for releasing the said supporting means from the bucket to allow the latter ..to dump, and a swinging frame mounted on the vehicle and adapted to engage the bucket on its rearward travel for automatically restoring the connection between the bucket and the said supporting means, substantially as described.

16. The combination with a vehicle, of a bucket mounted to travel thereon, means for normally locking the bucket against movement in respect to the vehicle, said means including bufler hooks pivotally mounted on r the vehicle and adapted to interlock in operative relation with the bucket, and means for normally-holding the buffer hooks in operative relation with the bucket, substantially as described.

17. The combination with a vehicle, of a carriage mounted to travel thereon, means for normally locking the carriage against movement in respect to the ve iicle, said means including bufl'er hooks pivotally mounted on the vehicle, pawls ivotall mounted on the carriage and wit whic' the'bufier hooks interlock, and a springheld locking device mounted on the carria e and normally engaging the pawls for 100 ing the pawls against turning, and means for releasing the said locking device from engagement with the pawls, substantially as described. a V

. In testimon whereof I aflix my signature in presence 0 two witnesses. Y

' LEONARD C. WOOD. Witnesses:

A. J. OBmnn, F. E. Bowen.

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