US2615481A - Oscillating manifold hydraulic log barker - Google Patents

Description

Oct. 28, 1952 F. w. HoRsTKoTTE OSCILLATING MANIFOLD HYDRAULIC LOG BARKER Filed NOV. 10, 1950 2 SHEETS-SHEET l Oct. 28, 1952 F. W. HORSTKOTTE OSCILLTING MANIFOLD HYDRAULIC LOG BARKER Filed Nov. l0, 1950 2 SHEETS-SHEET 2 Patented Oct. 28, 1952 OSCLLATING invention is an .oscillating manifoldhyev draulic log barker, the essential feature of which.

is a ring-like manifold throughv which logs are `moved by conveyor means, th-e manifold including aplurality ofr equally spaced eflluX nozzles spaced around the vinside of the ring;,the ring-like manifold oscillating while the logto be debarked passes through the manif-oldat a regulated speed chosen t-o vproduee best results, tha-manifold with the nozzles meanwhile oscillating.` e s y It will be seen at once'that'the impact-of the nozzle streams will be along-'a series; of curves,

joined at their ends, and that coverageyof the log surface depends on the rapidity of the Yoscilla-I tion and the forward speedv of the log.

It will also beapparent thatspacing the nozzles aroundthe inside ofY the'manifoldring can besuchfthat stream coverage from one nozzle will overlap -thatof other nozzlesi-f desirable, and a surface irregularityA that marks-the place where a limb 4,lropped off during growth of the log will be attacked from several directions, which is one of theobjects ofthe invention- ,As is wellknoWI1.hydraulic de'barking `makes use of the hydraulic law,l that a streamstriking a relatively-flat surface lturns intoa iiat bodyfof water traveling outwards-from thepont of im-` pqtwith smallloss of energy and thatViti-isithis:

stream that enters between the log and its bark, forcing the latter Off; with almost explosive. violenee.. l-.Ho-wever, energylstored in the fia-t stream dissipated. rapidly-byrugosity and curvature of the logsurface; henceclose' coverage of the sur-` face, mbeuebarked isimperative and it is the bjectof the present invention to improve the surf faecoverage by cofordinating forward speedof the log with frequencyofoscillatidn of the nozzle,

MANIFOLD HYDRALIC Loo `immuno Y f Freaerik W. ngr'stkoueyroruana, omg. i' Application November 10,1950, serial No. 194,961

" l l scams. (o1. iiigzosij force, and equally favorable-hose conditionsaretypesof maV not believed possible with any other chine.

I attain the objects stated and others that will be apparent to those skilled in the art. bythe structure illustrated in the accompanyingdrawings and described in :the specification, whichls shown as my preferred-'structure at the presentA time; but is not intended as being limiting,..the scope of the invention being ascertained by the claims.

streams overfts surface tothe end that an optimumv debarking. result is achieved with a minimum of operating expense. s Another object is to .producea debarki-ng structureV tha-t isinherently. strong and not liable tofailure due tothe high pressuressnecessarily employed; Vthat contains no packed joints that must move' under the high pressure and, further, that requires a -sniallercapital `investment than other hydraulic ebarkefrs of comparable eiciencyand capacity,v ofy which I have knowledgel ,A other' objeceweu served by pheajciosea structure' is' to supply water under a very high pressure; of' the,'orderfoff.thirteen 'to' fifteenv hundred pounds per square inch', usually through hoses, as the disclosure'shows., e With the oscillating manifold ring, the', hoses are requiredA vto withstand .onlyarveryfsmall.fraction'of the i'lexure under 'high 'internahpressurd' the destructive In the drawings: Fig. l is a Iplan view of sented schematically; f y Fig. 2 is averti-cal Sectio al view takenonthe Fs.-2; 1 l Fig. -4 isa sectional viewtaken on the plane 1 -4, Fig. 2, illustrating the hose manifolds, one

of theimportant parts of the structure; andA Fig. 5 is a view of the structure shown in Fig. 2),A viewed from the righ-t handside of the figure andy schematically showing the log conveyors.l

Describing the machine of the drawings in greater detail, a two part log conveyor, indicated bynumerals I and 2, is shown schematically, and the drive will beunderstood to be present and adequate, itvv having been -omitted since any suite able conveyor may be used. The conveyor parts I and 2 are made torun synchronously as to the log conveying upper surface 3 and the log is moved,A at a suitable regulatedv speed in the direction indiy catedby the arrow 4. Y A barker 4frame Sis supported on a structural beam ii, supporting the relatively stationary mem-4 bers of the frame 5 such as the braces Sand the roller stands 1.

The purpose of the barker frame is to support a manifold 9, here-shown a-s an extra heavy pipe bent to ring-like shape and provided with auxiliaries to be hereinafter described; though itf maybe asteel cas-ting if preferred.

The manifold 9 will have a hollow interior as shown in Figs. 3 and '4, the interior beingin communication with the interiorof a hose manifold I0 as shown in Fig. 4 and made integral towithstand thehigh pressures mentioned, preferably by a welded connection II. ring-like manifold 9 are a plurality of nozzles I2 that direct highv velocity streams of Water againsty a log L to remove the bark, as is quite well known in the art, the water being supplied by suitable meanssuch as a multi-,stage pump I3 through a plurality of hoses Il!I the hoses being partially the preferred embodiment of the machine with certain parts reprel Spaced Within the Rollers I'I, which constitute the support for the drum-like cover I5, are formed with grooved perimeters which engage the perimeters of the. flanges I6, making the ring-like manifoldS .which is secured as by welding to the inside of the drumlke cover I5, movable in rotar-y oscillation,to bring the bark of the log within the in uence of hydraulic nozzles I2, as the log L is controllably and concurrently movedforward and oscillated, as*` it is* moved axial-ly through the open passagewayprovided by this construction, as shown in Figs. 1 and 5.

Water-carrying'- a highenergy content supplie bythe pump I3; or other suitable means, is to' be conveyed'from a; stationary supply means to an oscillating energy application means, through a plurality of nozzles, I2; and to,Y avoid the weaknesses-ofj a swivel', packed joint or other-apparatusl diicu'lt to keepl tight under the pressuresinvolved, I interpose a plurality of strong,l relatively small diameter hoses between the stationary manifold IBaA and the oscillating-nozzle manifold 9;v To avoid Vthe joints mentioned, I- stringthe hoses in side by side relationship, from the havingsufiicient length to accommodate the -f motion withoutlongitudinal stress due to the HlO'GQn- Oscillation of' the manifold1 9; and its attached parts is supplied With power from a motor 2B' which has a built inspeed changer and reverse gear (preferably) .a lever 2-I indicatingA that it danbemanua-lly controlled;- The drive from theA motor; 2.0; is shownv to be a pinion 22, interrneshedL with a gear 2.3, sincel scarcely enoughl spiacevwas available on the sheet to showa sprocket andj chain transmission,v which is preferred,` Either managment 0f.V transmission will turn a, Qrankr' Shaft' 2x43 and; Overa-te. a. Connecting rod 25. which. is operably connectedto the oscillating manifold.' Siby alwrist 26 and arwristpin 2;

'It Willbe onbyious` thatas the lQgVLisCarried. @mushthe rinsrlike manif01d;9.;. the plural. noz.- zlessupplied with high pressure. water will each make afseparate track on the surfacegofjthelog and as the ring oscillatesl andthe log moves forward from left` to right, those tracksd willi be sinusoidal andthe Sptflllgy 0f. the sinusoidicurves will be a functiovnQof'the, relatedspeeds ofthe conveyors carrying the log and the motor which oscillatesf the ringflike manifold' with its nozzles. Adjustment of the. debarkng machineI to sea.- sonalconditions ('asrwhen the barkisl compara-- tively free in the spring, due to sapstarting, or tight during later months) reduiresyarying oscililations per unitgof log length traversing the ring,- lile'manifold. Thesejvariatioyns canl be made with the machine running, by manipulation o f levers 2L or 34, 'or both, in any. order, as a resultofk observation of-results.

To center the 10s fOr-barking the difierentsizes,

, requirements- I mount the beam 6 on a hinge 30. raising or lowering the opposite end of the frame by a hydraulic cylinder 3|, a well known expedient.

My advance in the art of hydraulic log barking machines resides chiefly in mounting the ringlike manifold for oscillation with means for varying the speed of oscillation with respect to forward feed of the log, which asa major incident allows hoses to be used for water supply in a much more favorable position for endurance, as I believe, and also permits better apparatus for coverage of the nozzle streams over the face of vthev log.

To achieve optimum results, the log conveyor at all times, and the direction of movement must be reversible and manually variable in speed.

This is illustrated diagrammatically in Fig. 5, by a power input shaftk 32, a gear box 33 and a handcontrol lever 34, which by virtue of adriving sprocket 38, by chains 35, 3B and 3T, and by driven sprockets` 392, *wand-41, enablev an operatonto fulfill the speed, control and directional; It isto-u be understood that theelements mentioned have` no relationship toadesign drawing, which the a-rtneeds no instructions toadequatelyprov-ide.

Having disclosed my invention so that those familiar with the art to which it appertai-ns canmake and use it, whatr I claim as new and desireto secure by Letters Patent, is:

1. A hydraulic lo'g- Darker-comprising a fra-me, a ring-like high pressure nozzle manifold mount,-l edV Within a drum-likei-cover foroscillation withf in said frame, means tor oscillate said manifold and its cover, a plurality-of hoses for supplying water-to theinterior of said manifold.A saidhoses-v beingv mounted in side by side relationship oni-theexternal: periphery ofl said drum-like cover, said.- hosesbeing.- connected through said cover-to-said'; manifold, and a relatively fixed common water'A supply-for the opposite-ends of saidhoses to-Wh-ichf they are operatively joined; wherebyf said' hosesa wrapand unwrap from saidr coveras the. same oscillateswith the manifold-' l 2. A- hydraulic log barker having'in--combinmtion therewith a; ringlike-A water manifold, said manifold mountedfor oscillation, means for-oscil'vlating theA same: about al'og' passing through-saidmanifold, a drum-like covermounted on said manifold, a hosevmanifold'. mounted` on the cover-'- adjacent-the peripheral surface of the cover-andiinr communication with the. interior ofsaid ring like manifold, flexible hose means for' conveying-` Water to said hose manifold, saidf flexible hose;-

means being-connected to -said hose manifold-so asf to wrap andv unwrapon-the peripheral surf-ace: ofi said cover as sadrnanifoldf oscillates, anda; relatively stationary primary lwater,supply-means; said flexible hose means; having axloop portionv connectedtosaid watersupply means? in `order, to reduce stress-on saidfiexible hose means.

3. AA hydraulic log-barking machine comprisiing-a `hollow/ringshaped-nozzle manifoldmount'edi forl-oscillation-, means; for-oscillating said ring manifold, a drum-like cover for saidiringlmani. fold, hydraulic barking-,nozzles spacedjaroundjjthe, inside of saidgring manifoldand' directedj'geneb' ally-towardthe axis-ofthe ring, a hydraulic sup,- ply-meanslfor saidinozzle manifold eomprisingin.. part a plurality `ofhoses onthe perimeter of. saidjr cover, and meansfor connectingfsaid` hoses solid.-` lyj to said nozzle manifold,

4.` A-hydraulic ,logloarking-A machinecomprislng ai lring-like manifoldjj mounted; foroscillation a.

plurality of nozzles inside of said manifold so set that the streams therefrom will be directed against the perimeter of a log that traverses said ring manifold, a drum-like cover for said manifold, a hose connection mounted on the perimeter of said cover, hoses connected to said hose connection in side by side relationship so as to roll up and unroll as the cover oscillates, a stationary high pressure water supply for said hoses, and means for oscillating said manifold and cover.

5. The combination as claimed in claim 4 and including a connection between intake ends of said hoses and said water supply means that permits the hoses to fall into catenary loops as the hoses roll oif from said oscillating cover.

6. A hydraulic barking machine for logs, comprising in combination, a drum-like hose reel mounted for oscillation, a nozzle manifold means made rigid inside thereof, a plurality of spaced nozzles distributed on said manifold, positioned to direct their streams toward a common center, a plurality of watersupply hoses mounted on the periphery of said drum-like hose reel in side by side relationship, with their deliversr ends operatively connected to said nozzle manifold, a re1- atively xed water supply means for said hoses spaced fromjbsaid drum-like hose reel to which the nozzle carrier, a drum-like hose carrier adjacent thereto and mounted to oscillate with said nozzle carrier, and manifold means to connect Vthe delivery ends of said delivery hoses to said nozzle carrier, so that they normally wrap and upwrap from said drum-like hose carrier as said drumlike hose carrier oscillates.

8. A hydraulic log barker having in combination therewith a ring-like water manifold, said manifold mounted for oscillation, means for oscillating the same about a log passing through said manifold, barking nozzles mounted on said manifold so as to direct jets of water against a passing log, a drum-like cover mounted on said manifold, a hose manifold mounted on said cover adjacent its peripheral surface, exible hose means for conveying water to said hose manifold, said flexible hose means being connected to said hose manifold so as to wrap and unwrap on said cover as said manifold -oscillates, a relatively stationary water supply means, and said hose means being connected to said water supply by a loop connection.

F. W. HORSTKO'I'IE.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 794,399 Erxleben July 11, 1905 2,393,978 Edwards et al. Feb. 5, 1946 2,422,757 Swift June 24, 1947 2,501,848 Johnson Mar. 28, 1950 2,547,826 Kirschner Apr. 3, 1951

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