US1787725A - Barking apparatus and method - Google Patents

Barking apparatus and method Download PDF

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Publication number
US1787725A
US1787725A US245065A US24506528A US1787725A US 1787725 A US1787725 A US 1787725A US 245065 A US245065 A US 245065A US 24506528 A US24506528 A US 24506528A US 1787725 A US1787725 A US 1787725A
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United States
Prior art keywords
logs
compartment
liquid
bark
barking
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
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US245065A
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English (en)
Inventor
Herbert W Guettler
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Individual
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Individual
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Publication date
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Priority to US245065A priority Critical patent/US1787725A/en
Priority to DEG75032D priority patent/DE524878C/de
Priority to FR665446D priority patent/FR665446A/fr
Application granted granted Critical
Publication of US1787725A publication Critical patent/US1787725A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27L—REMOVING BARK OR VESTIGES OF BRANCHES; SPLITTING WOOD; MANUFACTURE OF VENEER, WOODEN STICKS, WOOD SHAVINGS, WOOD FIBRES OR WOOD POWDER
    • B27L1/00—Debarking or removing vestiges of branches from trees or logs; Machines therefor
    • B27L1/02—Debarking or removing vestiges of branches from trees or logs; Machines therefor by rubbing the trunks against each other; Equipment for wet practice

Definitions

  • - My invention relates to a barking apparatus and method.
  • thelogs are placedin a vat or tank and by alternately raising and lowering the water level the logs are first'fioated and then lowered to strike one against the other and form a compact mass or wood pile, this operation being repeated to cause the logs to strike or pound against each other so as to quickly break and 5 loosen the bark.
  • the body of at the other end providing an apparatusof With a view to overcoming the above 0bwater is subjected to a combinedpulsating andcirculatory motion insuch manner as to cause thelog's to strike against one another when floating so as to further assist in breaking and loosening the bark, the logs also rubbing against one another so as to quickly rub off the loosened bark.
  • Fig. 1 is a central vertical longitudinal view through a barking apparatus constructed inaccordance. with my invention.
  • Fig. 2 is a central longitudinal vertical sectional View through a modified form of apparatus, with the piston in its inner position.
  • Fig. 3 is a plan View of the apparatus illustrated in Fig. 1.
  • Fig. l is a senii-diagrammatic sectional view of an apparatus comprising several units similar to that illustrated in Fig. 2.
  • Fig. 5 is a semi-diagrannnatic sectional view of an apparatus of several units, illustrating a modification of the form shown in FigsQand- L s a
  • I employ a tank 1 which of elongated rectangular shape in plan view and is provided with downwardly converging end walls 2 and 3, the inclination of wall 2 being less than that of wall 3, and the upper prevents passage of the logs through the opening.
  • a cylinder 6 is secured to the flange 4 by cap screws 7 passing through a flange 8 at the upper end of the cylinder and threading into flange s.
  • This cylinder has direct con'n'nunicati on with the tank through the spaces between the bars of the grate structure 5.
  • the cylinder 6 is provided at its lower end with an outer annular flange 9 to which is bolt-ed a spider 10 carrying a central bearing sleeve 11 through which operates a plston' rod 12 secured to apiston 13 which operates in the cylinder and has a water tight fit therewith.
  • This piston is reciprocated inthe cylinder by suitable means connected to the piston 'rod 12; Any one of several means well 7 known in the art may be employed for reciprocating the piston and it is notnecessary to illustrate or describe such inc-ans in detail. 7
  • he tank 1 and the parts associated therewith may be braced and supported by a suitable structure 13, or in any other suitable or preferred manner.
  • An inclined'apron 14 is suitably supportedon the structure 13 and extends upwardly and outwardly from the upper edge of wall 3 of thetank foridirecting into the tank logs --discharged from an endless feed conveyor 15 of known type driven in a known manner.
  • This conveyor passes about upper sprockets 16 secured on a shaft 17 mounted in suitable bearingblocks 18 which are secured upon elements 19 of the supporting structure 13.
  • the logs Z discharged from the upper end of theconveyor 15 roll down the apron 14 into the tank .1 which is of a width slightly greater than thelength of the logs to be barked.
  • the tank 1 thus provides a suitable containeror compartment in which the logs are subj ected to the barking operation.
  • the tank 1 is initially filled with water to the upper edge of wall 2, when the piston 13 is in its innermost or raised position, the water line at this time being indicated by (1..
  • the apparatus intoopcration logs are fed into the tank by means of the conveyor 15 until a suitable number of logs are supported by the water within the tank and extending substantially the full length thereof as indicated by dotted lines in Fig
  • the piston 13 is reciprocated in cylinder 6.
  • the water flows out of the tank through the grate structure- 5 into the cylinder 6 so that, when the piston reaches structure 13.
  • the water level is at approximately the line b and the logs are in a compact mass one upon the other.
  • the cylinder 6 is oflarge capacity and the piston is reciprocated with suflicient rapidity to cause a quick lowering of the water level up on the downwardstroke of the piston thus causing the logs to drop one upon the other.
  • the water column in cylinder 6 is forced upwardly raising the water level in the tank so as to again float the logs, as in Fig. 2.
  • the bed o l water in the tank or log compartment is abruptly and alternately decreased and increased in rob ume.
  • the fingers 23 are disposed vertically and prevent dischargcof logs from thetank'. Undernorma'l operatingconditions, the hand lever 2 l is turned into the dotted line iosi tion of Fig.3 disposing the fingers 23 downwardly beyond the bars a. of the grate structure 20.
  • the logs-discharged from the tank 1 roll down the grate structure 20 onto the upperrmi of an endless conveyor 26 of suitable type, the flexible members or chains of which pass about sprockets 27 secured on a shaft 28 rotatablymounted in bearing blocks 29 secured on sub-frames 30 of the supporting structure 13.
  • This conveyor transfers the logs from the grate structure to storage piles or other apparatusfor further treat ment.
  • a return conveyor (not shown) is provided for returning to the apparatus for further treatment any logs which may be not completely'barked, as is'known in the art.
  • the bark which is removed from the logs is discharged over the upper edge of wall 2, and passes between the bars 20a of the grate structure 20 into ahopper 31 supported beneath the grate.
  • a spray pipe 33 is disposed above the grate structure 20, this pipe being.
  • Fig. 2 I have illustrated a modified form ofmy apparatus in which the tank 10 is provided with an opening 34 extending through the lower portion of its end wall 3a
  • the tank is further provided with a grate structure extending across this opening, and a rearwardly extending neck 86 provided at its outer end with an annular flange 37.
  • This flange bolted or otherwise suitably secured to a flange 38 atthe forward end of a cylinder 39 in which operates a pison 40.
  • the piston is reciprocated in the cylinder by a piston rod 41 which operates through a guide sleeve l2 of the piston. head which may be provided with openings to permit escape of any water which may leak past the piston.
  • the piston is disposed substantially tangentially of the tank 1a and the column of water discharged from the cylinder under pressure impinges upon the mass of logs so as to cause movement thereof toward the wall 2.
  • tion of the apparatus of Fig. 2 is in all other respects similar to the operation of the apparatus of Fig. 1.
  • both forms of the apparatus I provide, adjacent the rearward or The opera-.
  • desirabl 'I may provide a plurality of units arranged in a connected series forsuccessively treating the logs two or more times before final discharge thereof from the barking apparatus.
  • Such an arrangement is illustrated semi-diagrammaticallyin Fig. 4 in which I have shown three unit are dischargedtherefrom intothe second un t Where they undergo” further trea ment, being discharged from the second unit r into the third unit'in which the barking operation is completed, after which the logs are discharged from this third unit onto the conveyor 26 aspreviously described.
  • InQFig. 5 Ihave shown an arrangement similar. to that of Fig. 4; but'have illustrated l a umodification of the meansfor alternately raising andlowering the level ofthe water in the tank and imparting the previously referred to combined pulsating and circulatory motion thereto.
  • the cylinder 39 of Fig. 2 is replaced by a tubular member or pipe 4% and all of these pipes open into a header 45 at the inner. end of acylinder 46.
  • a method of barking logs consisting in placing the logs in a compartment, and alternately supplying liquid to the compartment and withdrawing the liquid from the compartment in suiiicient quantity tocause thelogs by contact to abrade one another'to, break and remove the bark.
  • a method of barkinglogs consisting in placing the logs in a body of liquid,- and then imparting a pulsating motion to the bodyof liquid 'to'cause the logs by contact to abrade one another for loosening and removing the bark.
  • a method ofbarking logs consisting in" placing the logs in a body of liquid, and then alternately reducing and increasing the volume or" the body of liquidcausing' convulsions thereof, the logs being caused to abrade one another by the convulsions of the body of liquid.
  • a method of barking logs consisting in placing the logs in a body of liquid, and
  • Abarking apparatus comprising a compartment for receiving the logs, and means for forcibly injecting and withdrawing sullicient liquid into and from said compartment to cause the log-s'to move relatively to and in contact with each other so as to;cause them to roll on each other andthereby break up and dislodge the bark.
  • a con'ipartinent for containing a liquid and adapted to receive the logs to be barked, the compartment having downwardly converging walls, and means for alternately and abruptly raising and lowering the liquid level in the compartment, the downwardly converging walls of said compartment promoting rolling and tumbling of the logs in contact one with another incident to variations in the liquid level in-the compartment and thereby facilitating loosening and removal of the bark from the logs;
  • the size of the cylinder and the travel of the piston being ofpropervalue to cause appreciable variation of the liquid levelin the-compartment, the downwardly converging end walls of the compartment and the injection of the liquid into the compartmentfrom the cylinder and lengthwise thereof, promoting rolling of the logs-in contact one with another incident to variations in the liquid level in the compartment and thereby facilitating loosening and removal of the bark from the logs.
  • a barking apparatus comprising a compartment for containing liquid and adapted to receive logs to be barked, a cylinder opening into the compartment below the normal liquid level-therein, said compartment being otherwise closed below the normal liquid level, and a piston operating in the cylinder, the volume of the cylinder and thei'movement of the piston being of proper valueto appreciably decrease and increase the volume of liquid in the compartment when the piston is reciprocated, such decrease and increase in volume of the liquidin the compartment causing the logs'to contact one another and thereby abrade and remove the bark from the logs.
  • barking apparatus a stationary compartment for containing liquid and and abrade the bark andremove it from the l log-s.
  • a method of barking logs consisting in placing the logs to be barked in a liquid in a stationary compartment, and alternately raising and loweringthe liquid level in the compartment and thereby causing the logs to strike and contact one another so as to loosen and remove the bark from the logs by abrasion and contact therebetween.
  • a method of barking logs consisting in placing the logs to be barked in a liquid I in a compartment, and alternately supplying liquid to and Withdrawing liquid from the compartment and in suflicient quantity to alternately raise the logs and lower them into contact with the compartment thereby causing the logsto pound one upon another to break and loosen the bark and remove it from the logs.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Forests & Forestry (AREA)
  • Debarking, Splitting, And Disintegration Of Timber (AREA)
US245065A 1928-01-07 1928-01-07 Barking apparatus and method Expired - Lifetime US1787725A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
US245065A US1787725A (en) 1928-01-07 1928-01-07 Barking apparatus and method
DEG75032D DE524878C (de) 1928-01-07 1928-12-06 Verfahren und Vorrichtung zum Abrinden von Baumstaemmen u. dgl.
FR665446D FR665446A (fr) 1928-01-07 1928-12-08 Procédé et dispositif pour le décortiquage des bûches de bois

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US524878XA 1928-01-07 1928-01-07
US665446XA 1928-01-07 1928-01-07
US245065A US1787725A (en) 1928-01-07 1928-01-07 Barking apparatus and method

Publications (1)

Publication Number Publication Date
US1787725A true US1787725A (en) 1931-01-06

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Family Applications (1)

Application Number Title Priority Date Filing Date
US245065A Expired - Lifetime US1787725A (en) 1928-01-07 1928-01-07 Barking apparatus and method

Country Status (2)

Country Link
US (1) US1787725A (fr)
FR (1) FR665446A (fr)

Also Published As

Publication number Publication date
FR665446A (fr) 1929-09-18

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