US1285318A - Dipper and handle for steam-shovels. - Google Patents

Description

E. 1. MYHHMJ,

'NPPER AND HANDLE FR STEAM SHGE'LESa M m6 u APPLICATION man gaz. wsa4 k- T iggeyi u aemed B10?. Q, QM 4 SHEETS-sms: 2.

5.1. IVOYNIHAN.

DIFFER AND HANDLE FOR STEAM SHOVELS.

APPLICATION FILED msn/:5. 1918.

ante NCIV. EL 1918..

4 SHEETS-SHEET 3.

E. MOYNIHAII.

www AND HANDLE FOR STEAM sHovELs,

' ,e APPLICATION FILED FEB. Z5, 39H31 1 l" Paenel Nov, I9, 1918.

m Zava/*war degree in proportion idler 26 on the boom ing' of the dipper handle 6, when merely bear or impinge against bolts-110 passing through the lugs 11, the purpose of which will hereinafter be more f ully set forth, and said links 9 are provided with pins 12 which ride in slots 14 within offset plates 16 whose upper oit'set ends are secured on each side of the lugs 11 whereby adjacent faces or surfaces of the plates 16 form a channel equal in width to the space between the lugs 11 and slightly larger than the thickness of the links 9, thereby leaving the dipper 1 hingedly mounted vupon the end of the dipper handle 6 by means of the bearings 2, bolts 3 and bracket 4 secured to said dipper end 6.

The plates 16 are further secured to the back of the dipper 1 by means of the hinge bolts 17 of the hinges 18 on the swinging bottom 19 of the dipper 1, said bottom 19 being normally held in aclosed position by the usual latch 21. A

v The ends of the linksl) are rigidly held in the usual operative position by the tension of the hoisting cable 22 passing from the hoisting mechanism 23 within the cab 24 over sheavef27 on the end of a boom 28, through the sleeve block 29 secured to the bail 31 of the dipper 1 and thence over an 28 to the end of the dipper handle 6.

As the dipper 1 is of considerably greater weight than the dipper handle 6 it is evident that the tension of the cable 22 will impinge the back of the dipper 1 against the free or outer ends of the links 9.

The links 9 are further secured in such position by means of latches 32 secured to a shaft 33 having a c rank portion 34 engaged by a suitable spring 36 whose other end is secured to the back of the dipper l to normally retain the ends of the latches 32 within the path of the pins 12 on the ends of the links 9 to prevent the said pins 12 from traversing the slots 14 in the plates 16, thereby providing rigidity between the dipper 1 and the handle 6 when used in the ordinary manner for excavating' purposes.

It will be observed that the cable 22 is substantially continuous from the hoisting mechanism 23 to the dipper handle 6. lf the hoisting mechanism pays the cable 22 ont the weight of the dipper 1 and dipper handle 6 will cause them to be lowered.

f, however, the latches 32 are releasedto permit the dipper 1 to swing freely on the bolts 3, and the cable 22 is rigidly engaged, by locking the idler 26 to prevent the lowersaid cable 22 is paid out or released, the dlpper 1 will swing on the bolts 3, which then serve as hinges, and the said dipperll is inverted a to the amount of cable paid out as disclosed in Fig. 4 of the drawings.

I :6nd from experiment, however, that it a hne 52 connected to excavating by means of the cable 22 messie would be diflicult to rigidly engage av portion ofthe cable 22 by. merely passing the same over one idler as at 26.

In order to eifectively engage that portion of the 'cable 22 controlling the dipper handle 6 to prevent lowering of said handle when the ipper 1 is to be inverted, and yet provide in'eiect a continuous operating cable of what is known as the three 'reaved type, l have provided oneach side of the idler 26 a pair of drums 37 and 38 rigidly secured to a shaft 39, upon which they idler 26 is loosely mounted, said shaft 39 being rotatably mounted upon vthe top of the boom 28 and having a pair of oppositely faced ratchets 41 and 42 on one end thereof.

A pair of pawls 43 and 44 are mounted to engage the ratchets 41 and 42 and are normally held means of a weighted arm 46. and 44 may. be operated ratchets 41 and 42 to prevent the rotation of the drums 37 and 38, by means of a line 47 operatively connected to a foot pedal 49 adjacent the operator. 'l

The line or cable 22 then stops or ends upon the drum 37 and a short cable 51 is wound in the same direction upon the drum' 38 and leads off to the end of the dipper handle 6 thereby forming substantially and in etlect a continuous cable from` the hoisting mechanism 23 to the end of the dipper handle 6. It is obvious that as theable 22 unwinds from the drum 37 be rotated to take up the cable .'51 thereby providing in effect a single cable asA hereinbefore set forth.

To release the latches 32 I have provided the crank portion 34 of the' latch shaft 33 and also to the usual dump lever ,53 pivotally suspended from the handle 6 and having a 24 or near the operator.

A. second, line 56, shorter than the line 52, is also secured to the lever 53 and to the latch 21 to release the bottom 19 of the dipper 1.

As the line 56 is shorter than the line 52 it is evident that the bottom 19 will 'be released beforethe longer line 52 operates to release the latches 32. Therefore the dipper 1 and handle 6 therefor may be operated in the usual manner without releasing the links 9.4

The operation is as follows:

The dipper 1 and handle 6 are operated The pawls 43 its extension 51 1n the usual manner.

When a boulder is encountered whose dimensions will not permit its passage through the dipper 1 in the usual manner said boulder is elevated on the .dipper 1, or partly within it as disclosed in Fig. 1 the drawings. A By means of the crowding mechanism. in-

to engage the I the drum 38 willV from such engagement "by line 54 to the cab v and sinensis dicated in general by the numeral 50, vthe dipper -1 and handle 6 are projected overa receiving receptacle or flat car, indicated as at 55 in Fig. l of the drawings.

, The lines 54 and 52 are then operated to release the latches 82 in the path of the -pins 12 on the links 9, the line 56 being also operated to release the bottom 1.) but as the boulder can not pass through the dipper 1 the latter releasing is unessential.

The tension on the cables 22 and 51 is still maintained by the Weight of the dipper l, handle 6 and the boulder so that the ends of the links 9 still impinge on the baci; or the dipper 1 as disclosed in 'l of the drawings.

The foot lever 4:9 is operated to aetuate the line 4:7 and move the parvis and /l-l into engagement with the ratchets and e2 to prevent the rotation oi'a the drums 37 and 38 and the paying out of the cable 51 supporting the handle S. l

lf the cable 22 is nony released or paid out by the hoisting mechanism 23 the diyper 1 is rotated on the bolts 3, which serve as hinges, and the said dipper 1 is gradually inverted to deliver the boulder onto the flat car 55 or other receiving receptacle as disclosed in Fig. Ll-

the drawings.

After the boulder has been delivered thedipper 1 be automatically restored 'to normal position for normal digging or excavating operations by taking in the line Q2. oppositely faced ratchets el and /l respectively, it is evident that the line 51 and the g clipper handle 6 canv not be moved nntil said pawls are released.

As the line 22 is taken in the dipper 1 is elevated or restored to normal position, the pins 12 on the links 9 meanwhile trav ersing the slots 14 oi the plates 16 until the upper ends o3 said slots 14 are encountered. Ther latches 32 are returned 'to nor.-

mal position behind or beneath the pins 12. as the case may be, and held in such position by the tension orn the spring 36.

When the dipper 1 has been returned to normal position the pawls i3 and lill are released from the ratchets l1 and 42 respectively and held from engaging relation by means of the Weighted arm itl as disclosed in Figs. 1 and et the drawings.

rl`he lines 22 and 51 will now operate as a single continuous line and normal exea- As both avvls i3 and enage both p :es n

tion or" the operating cable and Withholdingerating cable to prevent the lowering of thev dipp'er handle only When said cable is paid out lwhereby the dipper may be inverted.

2l The combination with a steamY shovel oin aldipper handle; a dipper -hingedly mounted upon the dipper handle; an operating cable connected to the dipper and to the handle; andmeans for engaging the operating cable lto prevent the lowering of the dipper handle only when said cable is paid out whereby theidipper may be 4inverted; and means Jfor automatically securing the dipper rigidly to the handle When dipper is returned to normal position relatively to said handle.

3. The combination 1vvith asteam shovel of a dipper handle; a clipper hingedly mounted upon the dipper handle; an operating ycableV connected to the clipper and to the handle; and means for engaging the operating cable to prevent the lowering of the dipper handle only when said cable is paid out whereby dipper may be inverted;

and. means for automatically securing the dipper rigidly to the handle when said dipper returned to normal position relatively to said handle; and means for releasing the dipper securing means.

fl. ln a steam1 shovel, the combination with a cable boom of a dipper handle mounted thereon; a clipper hinge'dly mounted upon one end et the clipper handle; an operating cable connected to the clipper and to the dipper handle; means for detaohabl'; securing the Clipper rigidly to the handle; ineens for releasing the dipper securingmeans; and means for engaging the operating cable to prevent the lowering of the dipper handle when said cable is paid out whereby the 4clipper may be inverted.

5. ln Ia steam shovel, the combination' with a dippervhandle of a flipper hingedly mounted upon one end of said handle; a pair of links pivotallv mounted upon the handle and slidably connected to the dip per; means for preventing a movement ot the links on the clipper to secure the same rigidly to the handle; means for releasing the Clipper securing means to permit a moveing cable connected to the dipper and to the handle; and means for engaging the cable to prevents movement of the dipper handle'vvhen the. cable is paid out Trherehv the .clipper 'may be invert-eo.

ment ot the dipper on its hinge 1; an operatlill -llliil 6.1ln a steam shovel or the like, the combination with a dipper handle of a dipper hingedly mounted upon one end of sald handle; slotted plates secured to the rear of the dipper; a pair of links pivotally mounted upon the dipper handle and slida-`- bly engaging the slots Within the slotted plates; means for normally preventlng a movement of the links Within the slots to rigidly secure the. dipper to the handle; means for releasing the dipper securing means to permit a movement of the'dipper upon its hinge and relatively to the handle;

an operating cable connected to the dipper and to the dipper handle; and means for engaging a portion of the operating cable to prevent a movement of the dipper lian-4 dle whereby the dipper may be inverted I when the cable is paid out to lower the dipvably mounted thereon; a dipper hingedly mounted upon one end 'of the handle; a pair ofslotted plates detachably mounted upon each side of the .rear of the dipper; .a pair of' oliset links plvotally mounted upon lthe end of the handle adjacent the dipper and slidably engaging the slots in the plates to permit a movement of the dipper relatively to the handle; a pair of latches\arranged to normally prevent a movement of the links within the slots to rigidly secure the dipper to the handle; means for releasing the latches to permit a movement of the'dipper relatively to the handle; a pair of sheaves connected together and rotatably mounted upon the cable boom; an operating cable connected to the dipperv and to one of the sheaves; a second "cable connected to the remaining sheave and to the dipper handle,

said cables and sheaves operating in unison to provide a continuous cable and to operate the clipper and the handle therefor when the. dipper securing latches secure the dipper to the handle; and means for preventing a movement of the sheaves when the securing latch is released and the cable is paid out whereby the handle may be held against movement and the dipper inverted.

8. In a steam shoveh' the combination with a cable boom ot' a dipper handle mov ably mounted thereon; a dipper hingedly mounted upon one end of the dipper handle; a pair of slotted plates detaehably mounted upon each .side of the rear of the dipper; a pair of .offset links pivotally mounted upon the end of the handle adjacent the dipper and slidably engaging the slots in the plates lto permit a movement of the dipper relatively. to the handle; a pair of latches arranged to normally prevent a movement of the links inthe slots and the dipper relatively to the handle;

means for releasing the latchesto permit mesme a movement. of the dipper relatively to the handle; a pair o'sheavesco nected together and rotatably .mounted upon the cable boom; an operating'cable connected tothe `dipper and to one of the sheaves; a second cable connectedto the remaining sheave' and to the dipper handle, said cables and sheaves operating toprovide a .continuous cable and to operate the dipper. and handle therefor simultaneously' When-.the dipper securing latches are in` normal position-pa pair of oppositely faced ratchetssecured to the sheaves; and means .for engaging the ratchets to prevent a rotation of the sheaves and a movement of the flipper when the olierating cable is paid out and the/dipper` securing latches released whereby the dipper may be inverted.

9. In a steam shovel, the combination with a cable boom of a dipper handle mov-` i ably mounted thereon; a dipper` hingedly mounted upon one end of the dipper handle;

a pair of slotted plates detachably mounted v upon each side of the rear of they dipper: a pair of offset links pivotally mounted upon the end of the handle adjacent the dipper and slidably engaging the slots inthe plates to permit a movement of the dipper relatively to the han'dle; a pair of latches arranged to normally prevent a movement of the links in thc slots and the dipper relatively to the handle; means for releasing thcl latches to permit a movement of the dipper rclatively'to the handle; a pair of sheaves connected together land rotatably mounted upon the cable boom; an operating cable connected to the dipper and to one of the sheaves; a second cable connected to the remaining sheave and to the dipper handle, said cables and sheaves operating to provide a continuous cable and to operate the dipper and handle therefor simultaneously when the dipper securing latches are in normal position; a pair of oppositely faced ratchets secured to the sheaves; and means for engaging the ratchets to prevent a rotation of the sheaves and a movement of the dipper when the operating cable is paid out and the dipper securing' latches released whereby the dipper may be inverted; and means for normally preventing the engagement of the ratchet engaging means Whereby the dipper and handle may be operated in unison.

l0. In a steam shovel., the combination 1'20 with a cable boom of a dipper handle movably mounted thereon; a' dipper hingedly mounted upon one end of the handle; means for rigidly securing the dipper to the handle; means for releasing the dipper seem-,126 ing means; a pair ofconnected sheaves ro- I tatably mounted upon the cable boom; an

4 operating cable connectedto thedipper and to one of the sheaves; asecond cable conto the dipper handle, said sheaves and cables anemie flipper handle; and means for preventing a rotation of the sheaves to prevent a movement of the clipper handle When the operat- Aing cable is `paid out wherebyV the dipper may be inverted.

11. In a steam shovel,v the combination With a cable boom of a dipper khandle movably mounted upon' said boom; a dpper ,hingedly mounted upon one end of the dipper handle; means for rigidly securing the dipper to the handle; means forv releasing' the dipper securing means; a pair of connected sheaves rotatably mounted upon the boom; an operating cable connected to the dipper and to one of the sheaves; a second cable connected to the remaining sheave and o eratin to -rovide a continuous cable to the sheaves whereby a movement of the dipper handle may be `prevented When the operating cable is paid out to lower thedippei" thereby inverting said dipper.

n Witness whereof. I have hereunto set my signature.

EUGENE J. MOYNIH.

Z5 with the ratchets to ptevent a'rotation of

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