US1889046A - Apparatus for decorticating timber - Google Patents

Apparatus for decorticating timber Download PDF

Info

Publication number
US1889046A
US1889046A US532680A US53268031A US1889046A US 1889046 A US1889046 A US 1889046A US 532680 A US532680 A US 532680A US 53268031 A US53268031 A US 53268031A US 1889046 A US1889046 A US 1889046A
Authority
US
United States
Prior art keywords
logs
beams
members
bark
decorticating
Prior art date
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
Application number
US532680A
Other languages
English (en)
Inventor
Foss Per
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Application granted granted Critical
Publication of US1889046A publication Critical patent/US1889046A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • 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

  • This invention relates to apparatus for decorticating timber.
  • the method of removing bark from wood by rolling the logs against each other is already known.
  • use was generally made of drums rotating around their longitudinal axis, in which the logs lying lengthwise and one on top of the other roll on each other upon rotation of the 1 drums. In this way they are freed from the. bark by friction.
  • the drums are generallyinclined or provided with suitable arrangements by means of which the logs are slowly moved to the place of delivery-located opposite to the admission end.
  • a device has also been used in the past consisting of chains, belts or the like, that are suspended in the form of loops and in which the logs are laid in the troughs of theloops.
  • the belts are joined together by longitudinal rods, so that a grid-like belt is the result.
  • This grid-like belt is moved up and down so that an effect similar to that produced with the aid of the drums is attained.
  • Z5 Box-like devices are also in use, in which the logs are placed crosswise to the length of the box and moved with the aid of spurs extending into the box through the floor of the same. The logs are lifted by the spurs so that they roll against each other. They also roll forward in the box.
  • the decorticating of logs is greatly improved and treatment of all parts of the logs is assured.
  • the device according to the invention is distinguished by its exceptional simplicity.
  • the logs are rolled on each other by the device of the invention, and also forced to exert an intensive lengthwise friction against each other.
  • the decorticating can be carried on with or without spraying of the logs with water, according to the individual requirements.
  • the device consists of a receptacle open at one or both ends, having a floor of grid beams and furthermore of a device for moving the grid beams perpendicularly or longitudinally in relation to each other.
  • a device for moving the grid beams perpendicularly or longitudinally in relation to each other.
  • the container is advantageously constructed in the form of a trough.
  • the beams forming the floor are arranged with their longitudinal axes parallel to the longitudinal axis of the trough.
  • the grid beams the upper faces of which are advantageously of a roof-shaped construction, are provided'with a metal coating 30 having irregularities in its surface. Between the grid beams intermediate spaces are provided which are of such a width that the bark which has been removed is able to fall through these slits or can be conveyed away by irrigation with water.
  • the trough can be opened at the charging end or else can be closed by a special closure, or by the grid beams themselves, which in that case would be provided in this portion with an added portion extending upward at an angle. At the discharge end the trough is open. In order, however, not to have a too rapid forward motion, it is, however, advisable to construct the grid beams on an incline towards the discharge end.
  • the grid beams can be arranged so as to slope in one or another direction, the slope being selected according to the nature of the tim her from which the bark is to be stripped, preliminary tests being first carried out in order to determine the most advantageous form of the grid beam support from case to case. If the grid beam support does not slope upwards or only has a slight upward slope towards the discharge side, then a dam Ina advantageously be provided at the exit end of the trough, which may be in the form of a weir or a flap or the like.
  • the drive or drives for the individualgrid beams are preferably arranged in such a mannerthat they do not come into contact during the operation with the water used for the irrigation, or with the stripped bark or the like.
  • Fig. 1 is a plan of one embodiment of such apparatus.
  • Fig. 2 is an elevation of the same apparatus, the front side wall being cut away.
  • Fig. 3 is an end View.
  • FIGs. 4 and 5 depict respectively the side and end views of another embodiment of apparatus for carrying out the process of the present invention.
  • the rectangular vessel a consists of the two side walls 9 and g, made, for example, of Wood, and of the bottom, which, for example, is constructed of three beams I). These beams are mounted so as to oscillate at their free ends by means of the oscillating arms 03', at the other ends they are provided with arms I). which can be set in motion by means of a 'crank shaft 0.
  • k is the drive for the crank shaft, which is mounted in such a manner that it moves each beam 6 both in the longitudinal direction and in the vertical direction.
  • the end walls of the vessel a are constructed on the one hand of the beams Z which are rigidly connected with the bottom beams and which are mounted in an approximately perpendicular position thereon, and on the other hand of the flap 7 which hinges about its upper edge. Nozzles 6, may moreover, be arranged above the vessel.
  • the apparatus can be operated using batch charging, or else logs can .be continually charged at the end of the vessel bounded by the beams Z, said logs being discharged under the flap f, said flap acting as a variable dam, depending on its actual weight, or if desired, by attaching an extra weight thereto.
  • the beams at the boty tom act in conjunction with the beams Z and by virtue of the suitably roughened upper surface of the separate beams as shown more particularly in Fig. 4, as a conveying device.
  • the time during which the timber is treated in the apparatus can be regulated as already remarked on the one hand by suitably adjusting the effective weight of the flap f, but it may also be regulated by means of the upward slope which is given to the beams from the charging side to the discharging side.
  • the extent to which the attachments Z are sloped plays a certain part.
  • the drive which imparts the rising and falling motion to the one end of the beams is arranged'at such a height over said beams that it is completely protected from the irrigating water which flows down over the logs, and also from the ejected bark or the like.
  • the drive is mounted upon a bracket m, Which is placed at about the same height as the top edge of the side walls 9' and g.
  • the crank shaft 0 is connected with the arms or tie-bars h which-constitute the upper extensions of the approximately verti cal beams Z.
  • the embodiment of apparatus according to Figs. 4 and 5 can be constructed in the same manner as the embodiment first described, and it may also be driven in the same manner.
  • a device for removing bark from logs which comprises a receptacle consisting of two side members and a plurality of spaced floor members normally sloping upward toward the discharge end of the device and means for imparting to said floor members vertical oscillatory motion relative to each other.
  • a device for removing bark from logs which comprises a receptacle consisting of two side members and a plurality of spaced fioor members rising abruptly at the charging end of the device to form an end boundary thereto and means for imparting to said floor members vertical oscillatory motion relative to each other.
  • a device for removing bark from logs which comprises a receptacle consisting of two side members and a plurality of elongated spaced floor members extending parallel to said side members and means for imparting to said floor members vertical oscillatory motion relative to each other and of greater ainplitude at one end of said device than at the other.
  • a device for removing bark from logs which comprises a trough open at at least one end and a plurality of elongated spaced floor members longitudinally arranged in said through and means for imparting to said floors members vertical oscillatory motion relative to each other and of greater amplitude at one end of said device than at the other.
  • a device for removing bark from logs which comprises a receptacle consisting of two side members and a plurality of elongated spaced floor members extending parallel to said side members, and eccentric driving means for imparting to said floor members vertical oscillatory motion relative to each other and of greater amplitude at one end of said device than at the other.
  • a device for removing bark from logs which comprises a receptacle consisting of two side members and a plurality of elongated spaced fioor members extending parallel to said side members and having sloping upper surfaces, and means for imparting to said floor members vertical oscillatory motion relative to each other and of greater amplitude at one end of said device than at the other.
  • a device for removing bark from logs which comprises a receptacle consisting of two side members and a plurality of elongated spaced floor members extending parallel to said side members and having roughened upper surfaces, and means for imparting to said floor members vertical oscillatory motion relative to each other and of greater. amplitude at one end of said device than at the other.
  • a device for removing by subjecting the logs to combined rolling and intermittent longitudinal motion which comprises a receptacle consisting of two side members and a plurality of elongated spaced floor members extending parallel to said side members, means for imparting to said floor members vertical oscillatory motion relative to each other and of greater amplitude at one end of said devicethan at the other, and a hinged flap member positioned above said floor members adjacent the end of the device v at which said oscillatory motion is of lesser amplitude.
  • a device for removing bark from logs by subjecting the logs to combined rolling and intermittent longitudinal motion which comprises a receptacle consisting of two side bark from logs members and a plurality of elongated spaced floor members extending parallel to said side members, means for impartingto said floor members vertical oscillatory motion relative to each other and of greater amplitude at one end of said device than at the other, and a hinged flap member of adjustable effective weight positioned above said fioor members adjacent the end of the device atwhich said oscillatory motion is of lesser amplitude.
  • a method of barking logs which comprises simultaneously rolling and intermittently advancing logs longitudinally through a receptacle by means of the motion of longitudinal, vertical and longitudinally vibrating members forming the bottom of said receptacle.
  • a method of barking logs which comprises simultaneously rolling and intermittently advancing logs longitudinally through a receptacle by means of the motion of longitudinal, vertical and longitudinally vibrating members forming the bottom of said receptacle, and supplying flushing water to said receptacle.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Forests & Forestry (AREA)
  • Debarking, Splitting, And Disintegration Of Timber (AREA)
  • Stacking Of Articles And Auxiliary Devices (AREA)
US532680A 1930-05-01 1931-04-24 Apparatus for decorticating timber Expired - Lifetime US1889046A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE1889046X 1930-05-01

Publications (1)

Publication Number Publication Date
US1889046A true US1889046A (en) 1932-11-29

Family

ID=7747740

Family Applications (1)

Application Number Title Priority Date Filing Date
US532680A Expired - Lifetime US1889046A (en) 1930-05-01 1931-04-24 Apparatus for decorticating timber

Country Status (4)

Country Link
US (1) US1889046A (de)
CH (1) CH158594A (de)
DE (1) DE589550C (de)
FR (1) FR724472A (de)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2876812A (en) * 1955-03-03 1959-03-10 Cloyd D Waldron Debarker with beater rotors under the log
US3489190A (en) * 1966-10-26 1970-01-13 Konstantin Ivanovich Voronitsy Methods and installations for stripping trees of their branches
WO1999000231A1 (en) * 1997-06-25 1999-01-07 Valmet Woodhandling Oy Method and apparatus for handling logs to be debarked

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4805677A (en) * 1988-05-23 1989-02-21 Alrik Wallin Apparatus for removing bark from cut logs

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2876812A (en) * 1955-03-03 1959-03-10 Cloyd D Waldron Debarker with beater rotors under the log
US3489190A (en) * 1966-10-26 1970-01-13 Konstantin Ivanovich Voronitsy Methods and installations for stripping trees of their branches
WO1999000231A1 (en) * 1997-06-25 1999-01-07 Valmet Woodhandling Oy Method and apparatus for handling logs to be debarked
US6213178B1 (en) 1997-06-25 2001-04-10 Valmet Woodhandling Oy Method and apparatus for handling logs to be debarked
ES2204204A1 (es) * 1997-06-25 2004-04-16 Sunds Defibrator Woodhandling Oy Ab Metodo y aparato para el tratamiento de troncos a descortezar.
ES2204204B1 (es) * 1997-06-25 2005-07-16 Metso Paper Pori Oy Metodo y aparato para el tratamiento de troncos a descortezar.

Also Published As

Publication number Publication date
CH158594A (de) 1932-11-30
FR724472A (fr) 1932-04-27
DE589550C (de) 1933-12-09

Similar Documents

Publication Publication Date Title
US3312194A (en) Husbandry apparatus
US2824665A (en) Object alining apparatus
US2647548A (en) Short wood chain barker
US3458086A (en) Aligning apparatus for cylindrical workpieces
US2578808A (en) Potato cleaning and separating device
US1782413A (en) Concrete-brick manufacture
US2308039A (en) Fruit pitting device
US1801572A (en) Machine for applying shredded material to confection-coated wafers and the like
DE69523504T2 (de) Ernte-Apparat
US4142560A (en) Open-type filling machine
US1852405A (en) Fruit washer and drier
US3519049A (en) Apparatus for destemming fruits and berries
US1132597A (en) Vegetable-washer.
US1698881A (en) Method and apparatus for mixing long-fibered materials with powdery substances
US2665721A (en) Bark-removing drum combined with hydraulic jet
US2140287A (en) Combined barking and washing drum
US4288314A (en) Apparatus for separating adhering dried fruits and the like
US2548798A (en) Cabbage washing and stripping machine
US2244729A (en) Grader
US876713A (en) Ore-concentrator.
US1646701A (en) Cleaning machine for fruit, vegetables, or the like
US1716712A (en) Washing machine for vegetables, fruit, and the like
SU1496701A1 (ru) Измельчитель корнеклубнеплодов
US1194872A (en) Apparatus por barking wood
US1786405A (en) Apparatus for treating fruit and the like