US1206288A - Channeling-machine. - Google Patents

Description

A. BALL.

CHANNELING MACHINE.

APPLICATION HLED nEc 27. 1907,

Patented Nov. 28, 1916.

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CHANNELING MACHINE. APPLICATmN FILED DEC. 27, 1907.

Patented Nov. 28, 1916.

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CHANNELING MACHINE.

APPLICATION FILED Dec. 21, 1901.

ALBERT BALL, 0F OLAREMONT, NEW HAMPSHIRE, ASSTGNOR, BY MESNE ASSIGN- MENTS, TO SULLIVAN lilACI-INERY COMPANY, Oli BOSTON, MASSACHUSETTS, A

CHANNELING-MAOHINE.

incense.

Specification of Letters Patent.

Patented Nov. 23, 1916.

Application led December 27, 1907. Serial No. 408,254.

To all fte/wm t may concern Be it known that I, ALBERT BALL, a citizen of the United States, and a resident of Claremont, in the county of Sullivan and State of No f' Hampshire, have invented an improvement in Channeling-Machines, of which the following description, in connection with the accompanying drawings, is a specification, like letters on the drawings representing like parts.

My invention relates to stone working machines, being intended more particularly for quarrying machines of the channeler type, although in some of its features 1t may have application to devices other than channeling machines.

My invention will be best understood by reference to the following description when taken in connection with the accompanying illustration showing one specific embodiment thereof, while its scope will be more particulai-ly pointed out in the appended claims.

In the drawings: Figure 1 is a front elevation of a channeling machine embodying one form of my invention; Fig. 2 is an elevation, on an enlarged scale, partially in section, showing the lower end of the tool guide upon the machine in Fig. 1; Fig. 3 is a section in plan on the line 3 3 in Fig. 2; Fig. l is a detail showing in end elevation a portion of the tool and socket member shown in Fig. 2; F ig. 5 is an end elevation, partially in section, showing the principal working parts of the clianneler illustrated in Fig. 1; Fig. G is a section in plan, on an enlarged scale, taken through the tool-supporting standard on the line 6-6 in Fig. 1;

Fig'. 7 a vertical sectional elevation taken through the cylinder and controlling valve of one of the two pressure 'fluid piston hammer tools shown as employed upon the channeler in Fig. 1; Fig. S is a sectional elevation showing thehoisting device upon the traine of the channeler in Fig. 1; and Fig. 9 is a detail showing a tool-lifting attachnient.

Referring to the drawings and to the enibodiment of the invention there shown for illustrative purposes, the same is disclosed as applied to ausual form of track channeler having the main frame or truck 1 supported upon the wheels 2, the latter adapted to track with the rails 3 customarily laid upon the bottom of the quarry.

Any desired or suitable construction of machine may be employed and any desired' means may be used for advancing the same along the line of cut, but in the illustrated form of my invention the channeler is shown as provided with the truck-driving engine l of the pressure-fluid type, mounted upon the frame and connected through a wellknown form of reversingmechanism to drive the machine along the trackway in either direction through the worm shaft 5, worm gears G and axles 7.

At the working side of the machine suitable means are provided for supporting the channeling tools and the actuating devices therefor. Such supporting means may be of any suitable construction according to the character of the work or the type of machine to which the invention is applied, but in the disclosed embodiment thereof there is provided a trunnion shaft 8 to which there is adjustably bolted a trunnion block 9, upon the hub portion 10 of which is mounted the standard 11 so that it may be adjusted to any desired angular inclination in the plane of the channel groove. The standard is held rigidly in its selected position of adjustment upon the trunnion block by the clamping plate .l2 and the clamping bolts 13. The trunnion block may be unclamped from and again clamped to the shaft in a fresh position so that the standard may be tipped back from a vertical position for angle cutting, or may be adjusted to either end of the machine, as is usual in this class of apparatus.

The tool-actuating devices are carried upon the sliding frame 1li, which is mounted to slide vertically upon the standard, the latter being provided with retaining gibs 15. rlhe sliding frame with its tool-actuating devices is elevated or depressed to retract or advance the said devices relatively to the work by means of suitable feed mechanism, the same herein comprising the feed screw 16 rotatably held against longitudinal movement in the arched portion 17 of the stand` ard 11, the lower end of the screw having threaded engagement with the. threaded member ,18Nsecuredto the upper portion of the slidingV frame. -The upper protruding end ofthe screw is provided with a usual Y ratchet and pawl device 19 connected to the vhand-lever 20, whereby the feed screw may be turned by the operator and the required advancement or retractionV of the sliding 10 frame obtained.

v In machines of this class it isusual to provide one or more channeling tools directly conneoted to areciprocating tool-actuating device, sorthat the tools themselves are re- Y 15 ciprocated up Vand down'in the cut. In the j-p'resent instance, however, I have shown the tool non-reciprocatively associated with the actnating'rdevice, so that, while arranged to receive the impact of the actuating device, 20y it 1s not connected to reciprocate therewith.

Y A lVhile my invention is applicable to single i .tool-actuating units, 1 have herein disclosed the same asembodied in a ehanneler having two channeling units mounted side by side,

each-upon the sliding frame 14, each Vunit lhaving tool-striking means embodied in a pressure-fluid tool engine of the piston hamp Operatively related to p mer or impactl type. each fof-said tool engines-1s a tool or set of *.30 tools maintained in such relationthereto as tof' receive the impact each of its piston hammer. Y Y

7 Referring more particularly to Fig. l the tworpiston-hammer tools 21 are secured to 'theslidingframe 14,' being each located so '.'-thatrits'hammer Vpiston 22' will strike its 4tool orl gang of :tools 23 rdirectlyy beneath vwhere'the tools are loosely-held with their @cutting-.ledgesresting against the rock and 40 their 'opposite ends to receive the impact of the lhammer members. Y Y

dileansare preferably provided to guide .the tools and particularly vnear theircutting vends, so'that, as they are'carried'with the --channeler with their cuttingends resting in .the line Vof cut 'and receiving the rapid recurring-.blows of thehanimers, they may be held y i frame,to'which are bolted tl'e retaining `straps 24, the tools being adapted to slide endwise vbetween the straps and-fthe frame.

-' n .The lower ends of the tools are shown as guided-bydeviees carried upon an upright guide-plate 25, the latter bolted to the face of the sliding frame, but having a depend- 1 ing guide-supporting portion which extends below the frame and down into the channel groove in association with the cutting tools, with which latter it is carried along in the cut as the machine advances.

By referring to Figs. 2 and 3 it will be seen that the inner vertical edge of the tool rests'against the outer vertical edge of the guide plate so that the latter acts as a rigid abutment for the leading one of the two tools in case the latter encounters resistance as it is dragged or pushed along on the bot` tom of the out by the advance of the machine. rl`he tool is prevented from vibrating or moving laterally out of the line of cut by means of the pair of supporting and guiding ears 2G secured to the lower end of the guide plate and closely overlying the fiat faces of the tool (see Figs. 2 and 8).

iVhile the greater resistance to advance -moveinent lengthwise the cut is encountered by the leading tool of the pair, which resistance, however, is opposed by the rigid guiding plate, as described, the following or trailing tool should preferably be provided with some means to hold it up in position against the tool guide and prevent it from dragging behind. For this purpose it is preferably engaged by some kind of a socket holder, the latter being such as to permit the ready removal of the tool for the purpose of changing tools and substituting one of greater length as the cut deepens. In the drawings I have shown a socket holder 2T for each tool arranged just above the guiding ears 26, which holder' keeps the trailing one of the two tools up against the guide plate. To make this socket holder readily removable, the same is in the form of a U- shaped strap having inturned ends 28 adapted to slide in vertical grooves formed in a projection of the guide plate Q5. The socket piece 27 is provided with a handle portion 29 which, overlying the face of the tool, extends upward through tae guiding straps 2-,1- and terminates just below the top of the tool. At any time, therefore, the socket piece may be lifted up out of its grooved seat in the guide plate b v the handle 29 for the purpose of changing the tools, as hereafter described.

The guide plate being secured to the sliding frame descends with the latter, as the cut deepens and the channeling units are fed toward the work, thereby keeping the guiding and supporting devices described in close association with the cutting ends of the tools at or Vnear the bottom of the channel groove.

1n Vcutting the channel groove as the cut deepens, it will finally become necessary to substitute tools of greater length to obtain a deeper cut. When this stage is reached the guide plate 25 can then be disconnected from the sliding frame 14 and the latter, together with the cylinders 21, elevated by the feed adjusting screw 16, the tool guide with the tools remaining in the bottom of the cut. lhen the frame has been raised b an amount equal to the increased length o the new tools to be substituted, the guide plate is then again rigidly secured to the frame and a fresh set of tools substituted. The tools may be readily removed by taking off the clamping straps 24 thereby releasing the tops of the tools, and then drawing up the socket holders 27 by their handles 29, this leaving the lower end of each tool free t0 be swung out from the guiding ears 26 and lifted out from the cut. The new tools can then be slipped between the supporting ears 26, new socket holders inserted having longer handles, corresponding to the increased length of the new tools, and finally the guiding straps 211 placed in position. This type of channeler requires less labor and time to change tools, despite the fact that they are engaged by guiding devices in the cut, than does the ordinary type of channeling machine.

Any suitable fastening between the guiding plate and the sliding frame may be employed. Preferably such fastening should provide for the adjustment of the plate upon the frame, as described. In the illus trated form of my invention the guide plate is shown as extending above the height needed for the shorter tools and provided with an extra set of bolt holesl 80 at such distance from the next adjacent lower set of holes that when the frame is raised as described and the guiding plate secured thereto in its newly adjusted position corresponding to the increased length of tools the upper set of bolts will pass through the eXtra set of holes 80. If another change of tools is required for a third depth of cut, the machine at the outset may be equipped with a still longer guide plate than the one herein shown, thereby permitting the same to be used for all tool lengths, or the plate itself may be changed with the tools.

In order to keep the cut clean and particularly at and in advance of the cutting edges of the tools so that their sliding advance Valong the bottom of the channel groove during the cutting operation may not be impeded, there is preferably provided means for positively clearing the cut, and, for such purposes, I have herein shown a water conduit 31 formed in the face of the guide plate itself, and leading downwardly to the bottom of the tool guide whence it separates into two divergent branches 32, acting to direct the water along the bottom of the eut beneath the cutting edges. The conduit 31 is formed by a groove in the face of the guide plate closed by the overlying plate 33. The latter is provided at its upper edge with a connection 311 to which may be applied a hose 35 adapted to be connected with any suitable source of water under pressure.

While I have'here shown the tools 23 as single, the same may each consist of several tools arranged in the form of a gang, and, in referring herein to the tool provided for a channeling unit, it is to be understood that I refer to the tools collectively, either single or multiple, provided for that unit.

As a convenient means for raising either the guiding plate or the tools, and particularly the former, out of the cut, I have shown a hoist-ing device arranged near the top of the standard and .adapted to be operated by the runner to assist in lifting the tool guides or tools out of the cut. This device consists of the winch 36 (Fig. 8) secured to the shaft 37, the opposite end of which carries the gear 38 meshing with t-he pinion 39. When it is desired to lift the tool guide, after the same has been uncoupled from the frame, one end of a suitable chain may be fastened to the guide and the opposite end to t-he winch 36 which can then be turned by a handle 40 secured to turn the pinion 39. On the arch piece 17 of the standard is pivoted a pawl 41 (Fig. 1)

adapted to engage with the teeth of the gear 38 and prevent backward movement of the same.

The standard 11 has connection with the usual adjustable brace rod 42, the latter eX- tending diagonally back and having its other end removably connected to the opposite or rear edge of the frame, so that it may be adjustably moved with the standard when the latter is shifted to the opposite end of the machine, or may be length` ened or shortened to tip the standard -forward or backward.

The two actuating units may be of any desired construction, but are preferably, as stated, of the piston-hammer type. Any suitable construction of piston-hammer tool may be employed for this purpose, and in Fig. 7 I have shown a hammer tool well adapted for this purpose, although of a well known and usual construction. In the hammer-tool shown the piston 22 is reciprocated through the medium of pressure luid admitted under the control of the valve 4G from the admission port 43 alternately to opposite ends of the cylinder through the ports 44 and 45. The valve is shown as admitting pressure fiuid through the port 4:4: and exhausting the same from the lower end of the cylinder through the lower exhaust port 17. Pressure fluid is admitted to opposite ends of the valve through the axial passages 18 and L19, the latter connected to the 45 Vwhere the tools rest upon the rock and are i admissionpoit by the i'estrictedinlets 50 y51,respectively. yAsthe pistonmoves down the :'grooved portion thereof 52 iinally 7.] places in communication thel two ports 53 -and Slg-the former connected to the lower end of the controlling Yvalve and the latter f "to the. lower eXhaustfport 47, whereby 'thepressure at thebottom fof the valve Vdrops Land the valvefthereupon reverses connecting'Y Vl the Vport with the .pressure space 43, and

.Y 1 the'port la with therupper exhaust' port 55. '.fOnthereturn movement ot the piston the Yvalve isjagain reversed by connectingthe fByproviding a cutting tool non-reciprodevicepbut adapted to receive the impact of fsuch i device, the reciprocating parts are i Y. Vmade so light that a very high speed of operation can be obtained. This is particull'arly true .where a pressure-fluid impacthammer vof the type described is employed,

'Y Vwhich'hammer can be practically ruiiV at a sieed of'from-one thousand to twelve hun- .dred stro-kes vper minute. Greater rapidity in thecuttingactioii and more ei'lcient operation is not-.only obtained i'ionithis high f speed,but.also from the mode o t cutting,

wherein the tool is advanced along the botciprocated .piston-hammer.

.In the ordinary .type Vor channelerV the' e Vgang of tools being reciprocated with `the V4:0 v Y brated tromV side to side',v which lnot only actuatinodevicetend to be whipped or vicauses considerable and sometimes excessive Vwear upon. the sides of the tools butV also Vtends to make a crooked cut.

These diiiiculties are avoided in the 'present chan'neler not Vreciprocated with `the actuating device, thereby producing a more accurate channel groove and securing a longer life tothe tools..Y The duplex form of machine is an vadvantage in this type not onlyfroin the increased cutting'capacity, but since itv per- `Vmits a Vguide or support to be located between Vvthe tools adjacent the cuttingedges4 and p V 55V Y be rigidly braced for vcutting advance in thereby.providesthatthe leading tool will eitherdirection, while Vkeeping Vthe leading end of thetoolfree from attachments which j inightV serve as obstructions in preventing Y 'GQ Y Y 'endiof the cut. By the use ofthe pistontheftool from .being carriedocl'ose up to the '-jhainme'r. tool described the duplex form of `xmachine, moreover, is Vscarcely of greater Y Ebullcas togits 'actuating parts Y thanthe ordinary channeler.V47 Y attachment of this description.

Under some conditions of operation, as,

vforiexample, where the bottom of the cut is too soitvtoV allow the tool to be dragged along "the bottoni-by its entire weight, or for other reasons, it may be desirable to couiiteibalance wholly or in part the weight vof the drill sotliat the cutting edge of the toolmay be lifted free from the bottom of the cut, or Va suiiicient vlift may be exerted upon the tool,

topermit it to be dragged along without difficulty.

Variousineans may be employed :for this purpose, and, orillustrative purposes only, I have shown'in Fig; 9 an attachment which may '.'be appliedto the described form of Both tools :as shown are provided with an Vith the hand levers upright, and as shown in full lines, thesprings are designed to exert no lift, or substantially no lift, upon the tool. VV'hen .the hand levers are thrown over, for

example, to the dotted line position shown, the spring will be stretched and the tool more or less lifted. Pins G2 are provided to hold the levers in their normal position, and,

when depressed, as shown in dotted line, tom of the cut whileheld against the work I Vand.receiving the impact of the rapidly retliey may be held in position by any suitable vers 61 Vwhen thrown to stretch the springs `will be selected so that the stretched spring in each'case will just about balance the wei'ght'of the tool Yand raise the saine from :the bottom of the'cut. It is obvious, however, that the'springs may be strengthened or weakened,.or the levers may be moved to a final position such that the weight of the tool in either case may be only partially counterbalaiiced.

While I have shown and described one form of my invention, it is to be understood that the same is not limited to the details of construction or to the specific application herein made thereof, or to the particular means whereby the principles of the invention are disclosed or carried out, but that I claim:V .1.`The method of cutting a channel 'groove which consists in advancing the cutting tool in substantially the saine plane along the rock with the cutting edge resting loosely thereagainst, and at the same itime.:deliveringA to the opposite end thereof a series of rapidly recurring hammer blows.

2. The method of fcutting a channel groove Which consists in advancing the cutting tool in substantially the same plane along the rock with the cutting edge resting loosely thereagainst, and at the same time delivering to the opposite end thereof a series of rapidly recurring hammer blows and delivering Huid to said cutting edge.

3. The method of cutting a channel groove Which consists in advancing 4the cutting tool in substantially the same plane along the rock with the cutting edge resting loosely thereagainst at such a rate that suc cessive applications of the cutting edges are caused to overlap and at the same time delivering to the opposite end thereof a series of rapidly recurring hammer bloWs.

4l. A channeling machine having a piston hammer tool-actuating device, a cutting tool adapted to receive the impact of the hammer, a traveling support on Which the hammer and` the tool may be moved along the rock to cut a channel groove and means to hold the cutting edge loosely in contact With the rock during such travel.

5. A channeling machine having a pressure-fluid operated piston hammer, a cutting tool adapted to receive the impact of said hammer, means for advancing the hammer and the tool along the line of cut and means to hold the tool loosely against the rock at the bottom of the -cut during such advance.

6. A channeling machine having a main support, a piston hammer tool actuating device, means supporting said device slidably mounted upon said support, a cutting tool adapted to receive the impact of said device,

means to cause the travel of said support tov cause the tool to cut a channel groove and means for holding the tool in contact With the bottom of the channel groove during such travel.

7. A channeling machine having a truck, a standard mounted at the side thereof, a sliding frame upon said standard, a uidpressure piston-hammer tool mounted upon said frame, means for feeding said frame upon said standard and means on said frame for loosely holding a cutting tool normally disposed in the channel to receive the impact of said hammer tool While the said truck is moved along a rectilinear path.

8. A channeling machine having a truck, a standard mounted at the side thereof, a sliding frame upon said standard, a fluid pressure piston-hammer tool mounted upon said frame, means for feeding said frame upon said standard, rigid means on said frame normally disposed Within the channel and extending toward the bottom thereof, a cutting tool normally disposed in the channel adjacent said last mentioned means, and

means for loosely holding said tool in position to receive the impact of said hammer tool While the said truck is moved along a rectilinear path.

` 9. A channeling machine having a truck, a standard mounted at the side thereof, a sliding frame upon said standard, a iiuid pressure piston-hammer tool mounted upon said frame, means for feeding said frame upon said standard, rigid means on said frame normally disposed Within the channel and extending toward the bottom thereof, a cutting tool normally disposed in the channel adjacent said last mentioned means, means for loosely holding said tool in position to receive the impact of said hammer tool While the said truck is moved along a rectilinear path, and means for delivering fluid to the cutting edge of said tool.

10. A channeling machine having a plurality of separate cutting tools, a piston hammer actuating device for each cutting tool, means for progressively advancing the said devices and said cutting tools along the rock to cut a channel groove and means for holding said tools in the same cutting plane with their edges resting loosely against the rock.

11. A channeling machine having a truck, a standard, a support adjustably mounted upon said standard, a plurality of pressurefluid, piston-hammer tools arranged side by side upon said support, and a plurality of separate cutting tools operatively arranged lwith relation to said hammer-tools to receive the impact thereof and means to hold the tools against the Work.

l2. A channeling machine having a reciprocatory hammer member, a tool to receive the impact thereof, guiding means for the cutting end of said tool and means for adjusting said guiding means to enter and advance with the cut as the out deepens.

13. A channeling machine having a reciprocatory hammer member, a tool adapted to receive the impact thereof, means for progressively advancing said hammer member and tool to cut a. channel groove, and means Within the channel groove to provide lateral support for the lovver end of said tool to assist the advance thereof.

14C. A channeling machine having reciprocatory hammer actuating means, a pair of tools adapted to receive the impact of said hammer means, means for progressively advancing said tools to cut a` channel groove and a common tool-supporting means between the cutting ends thereof.

15. A channeling machine having a plurality of reciprocating hammer members, a tool for each hammer member arranged to receive the impact thereof, means for advancing said hammer members and tools to cut a channel groove, and a rigid support for the tools extending between said tools into the channel groove.

16. A channeling machine having a plurality of reciprocatoryhammer members, a

Y plurality of impact'reeeiving tools, one for each hammer member, and tool guiding means entering the channel groove for engagement with said'tools.

' l?. A channeling machine having a pair ottools adapted to be held loosely against the rock, means for striking said tools, and means adapted to enter thechannel groove adjacentV the cutting ends of the tools for pressing the leadingrtool forward in the direction of travel.

1 l8r. A channeling machine having a truck, a standard, a sliding frame thereon, a percussive tool, and means secured to the frame and adapted to extend into the channel grooveto support the tool-thereat.

19. A channeling machine having a v.toolstriking means, a cutting tool to receive the impact thereoffmeans for supporting the toolV Within the channelV groove, 'and means for advancing said striking means and toolsupporting means toward the Workfas the cutrdeepens. Y Y

20. A channeling machine having aI toolactuating device, a percussive cutting tool,

f means for progressively advancing the same alongthe rock to cut a channel groove,; and means-'for feeding water to the edges and sides of theV cutting tool.

i y21. ,A channeling machine having atoolactuating device, aV percussive cutting'tool,

Y means for engaging Ythe tool VWithin the channel groove and means for conducting Water through said toolfengaging means to the cutting edges and sides of said tool.

22,. A channeling machine having a'reciprocatory hammermember, a tool adapted to rest against the rock and receive the impact of said hammer member, means permitting the advancefoi' said tool and hammer mem- Vber to cut a channel groove, and means for Lclearing the cut in advance of the cutting edge vof said tool tok permit the unimpeded advancement thereof.

, 237A channeling machine having a tool, a socket holding device for engaging the tool Within the channel groove and means accessible to the operator for releasing the tool permit Withfrom said socket` device to draWal. Y 24; A5 channeling machine having a percussiveV tool-actuating device, a tool, means vconnected to the machine and extending into the channel for guiding the tool Within the channel groove, While permitting up and down movement of thetool under the impact of saidpe'rcussive device, and means forV hoisting the said guiding means upon the channeling machine.

25. A channeling machine having a reciprocatory hammer, al tool-toreceive the impact thereof, a-tool` guiding member connected to the machine and extending into the; cuttojhold the tool vloosely-to peifmit upland down movement thereof under the action of said hammer, and means upon the machine for hoisting the guiding member out of the cut.

2G. A channeling machine having a reciprocating hammer member, means to hold the tool loosely in the channel groove during travel of the machine to permit the up and down movement of the tool under the impact of the hammer member, a tool adapted to receive` the impact thereof, means ior progressively advancing said hammer member and tool to cut a channel groove, and means tending to lift the tool during the travel of the machine.

27. A channeling machine having a reciprocatory-hammer member, a tool to receive Vthe impact thereof, guiding -means for groove and-rhaving provision for means adapted-to prevent the following or trailing -tool from dragging behind during such advance.

29o A Yel ianneling'machine having a reciprocatory hammer member, a cutting tool, a traveling support for advancing said hammer member and tool to cut a channel groove, said tool being maintained With its cutting edge in substantially constant con- '1N tact with the Work, and means on said support` and Within the channel groove for guiding the said tool.

30.v A channelingl machine having a` travcling support, ahammer member, a cutting ll@ tool adapted to receive said hammer member, connections between the tool and said support and extending into the cut to guide and maintain the tool therein during the travel of the machine, and means for ad- 'U5 j-usting saidguiding means and said hammer member on said support toward or from the Work.

3l. A channeling machine having a traveling support, a hammer member therein, a tool held on V said support Within the channel groove during the cutting thereof, and adapted to receive the impact of said hammer member, and guiding means for said tool connected With said support, and extending into the channel groove.

32. A channeling machine having a travelingsupport, a pair of cutting tools, a, holder,means for supporting said holder between the tools, toY project into the channel 130 -groove and holding the tools loosely therein 10 tools to hold and guide the same therein,

and a pair of pressure Huid piston hammer devices to actuate said cutting tools.

In testimony whereof, l have signed my name to Juhis specification, in the presence of two subscribing,` Witnesses.

ALBERT BALL. llitnesses FRANK A. BALL, LEE A. limer-Irs.

Copies of this patent may be obtained for ive cents each, by addressing the Commissioner of Patents, Washington, .D. C.

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