US2661781A - Hydraulic barking or cleaning apparatus - Google Patents
Hydraulic barking or cleaning apparatus Download PDFInfo
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- US2661781A US2661781A US85449A US8544949A US2661781A US 2661781 A US2661781 A US 2661781A US 85449 A US85449 A US 85449A US 8544949 A US8544949 A US 8544949A US 2661781 A US2661781 A US 2661781A
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- log
- head
- nozzles
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- barking
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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
- B27L1/14—Debarking or removing vestiges of branches from trees or logs; Machines therefor using jets of fluid
Definitions
- This invention relates to improvements in apparatus particularly for removing bark from loss, but which may be used for cleaning these, and barking or cleanin timber slabs, and the like.
- An object of the present invention is the provision of apparatus for hydraulically removin bark from logs by means of a scrubbing and eroding action.
- Another object is the provision of apparatus having rotary sprays for barking logs and the like.
- a further object is the provision of apparatus for removing bark from logs by means of one or more sprays which are directed approximately normally to the log surface while each spray is rotated at high speed about an axis lyin substantially perpendicular to said surface.
- a further object is the provision of apparatus of the nature described which requires less water and less pressure than existing barkersfor doing the same job, and which is much simpler in construction and, consequently, less expensive'than the known devices.
- a further object is the provision of apparatus for applying a moving jet of high pressure water to a log at a high velocity across the bark or the face of the log in a simple mechanical manner as compared to existing barkers.
- a further object is the provision of apparatus having hydraulic nozzles mounted at such an angle that the water jet approaches a contact angle of 9G with the bark over the entire path of the jet on the log.
- Yet another object is the provision of'a log barker which may employ any type of' conveyor for the logs, or which may be easily built around most log-carrying conveyors.
- the present invention consists essentially of hydraulic barking or cleaning apparatus including at least one rotary head having atleast one nozzle adapted to direct water from one side of the head at a point spaced from the'center of rotation thereof, and means for supplying water under pressure to the nozzle'while the head is rotating, as more fully described in the following specification and illustrated, by way of example, in the accompanying drawings, in which,
- Figure l is an end elevation of the apparatus
- Figure 2 is a fragmentary plan view of the apparatus partly in section
- Figure 3 is an enlarged sectional detail of a rotary head and associated elements.
- the apparatus according to this invention for barking logs includes at least one rotary head It having at least one nozzle I I spaced radially from the axis of rotation [2 thereof, said axis lying substantially perpendicular-to a longitudinal axis of the log being cleaned or barked. It is preferable to employ a pair of nozzles, as shown,;in which case they are positioned radially on opposite sides of the axis of rotation.
- the head [0 may be mounted in any convenient manner, and any suitable meansmay be provided for supply ing water under pressure toits nozzle or nozzles while it is rotating.
- each head Ill is mounted on the end of a shaft l5 rotatably mounted in suitable spaced bearings it carried by a base 17.
- This shaft is rotated by a motor [8 mounted on the base I! and connected to the shaft by pulleys 20 and 2
- a passage 20 extends through the shaft and the head to each of the nozzles Ii.
- Suitable means for supplying water under pressure to the nozzles while the head is rotating. This may be accomplished by means of a cylindrical chamber 36 through which the shaft [5 extends. Seals 3
- the head I0 is; rotated by the motor :8, and water under pressure is sprayed from one side of the head through the nozzles ll.
- These nozzles maybe arranged so that the sprays converge.
- a log or any other surface to be barked or cleaned is moved past the rotating head so that the water sprays strike the surface normally.
- rotary heads It arranged around a common center.
- two of these heads may be mounted on supports and All lying substantially in the same vertical plane as the third head and diverging upwardly and outwardly therefrom.
- the base I? of each of these two movable heads is slidably mounted on its support, while the base of the third head is stationary, and suitable means is provided for shifting the movable bases up and down on their supports.
- Each of the latter bases may be moved by means of a hydraulic cylinder having a piston rod 46 projecting outwardly therefrom with pulleys 41 and 48 mounted on the outer end thereof.
- a cable 5!] is connected to the lower end of the base I! at 5
- Another cable 55 is anchored at E6 to the upper end of the base and extends over pulley 51, around pulley 53, and beneath the pulley e3, after which it is anchored to the support at 59.
- the three heads ill are arranged at approximately 120 in relation to each other.
- the nozzles H of each head converge slightly towards each other so that water therefrom is directed generally towards the common center.
- a log is moved through the space between the rotary heads on a suitable conveyor, such as rollers iii.
- the positions of the uppermost heads may be adjusted in order to accommodate logs of different sizes.
- the nozzles of each head are spaced from the log and rotate about an axis lying substantially perpendicular to a longitudinal .axis of the log, and streams of water under pressure are directed by said nozzles against the log normally to its surface.
- the water jets from the nozzles describe circles, and as the log moves continuously through the apparatus, the jets follow a compound cycloidal path over the surface.
- the heads and nozzles are preferably so arranged that the paths of the water from the nozzles overlap each other to ensure com- 4 plate coverage of the log sufacev This subjects the surface to a scrubbing and eroding action which completely removes bark, dirt and other material from said surface.
- Barking or cleaning apparatus comprising conveying means for moving a 10; through the apparatus, a head spaced from said log and rotatable about an axis lying substantially perpendicular to a longitudinal axis of the log, means for supplying water under high pressure to the head, at least one nozzle on the head spaced radially from the axis of rotation of the head, said nozzle being directed generally towards the longitudinal axis of the log at all times, and means for rotating the head at high speed so as to direct at least one high velocity water jet in a substantially cycloidal path over the log surface as said log is moved through the apparatus.
- Barking or cleaning apparatus comprising conveying means for moving a log through the apparatus, a head spaced from said log and rotatable about an axis lying substantially perpendicular to a longitudinal axis of the log, means for supplying water under high pressure to the head, a pair of nozzles on the head spaced radially from the axis of rotation of the head on opposite sides thereof, said nozzles being directed generally towards the longitudinal axis of the log at all times, and means for rotating the head at high speed so as to direct two high velocity water jets in substantially compound cycloidal pathsover the log surface as said log is moved through the apparatus.
- Barking or cleaning apparatus comprising conveying means for moving a log through the apparatus, a plurality of heads arranged around a longitudinal axis of the log, each head being spaced from said log and being rotatable about an axis lying substantially perpendicular to said longitudinal axis of the log, means for supplying water under high pressure to each head, at least one nozzle on each head spaced radially from the axis of rotation of its head, said nozzles being directed generally towards the longitudinal axis of the log at all times, and means for rotating the heads at high speed so as to direct a plurality of high velocity water jets in substantially compound cycloidal paths over the log surface as said log is moved through the apparatus.
- Barking or cleaning apparatus comprising conveying means for moving a log through the apparatus, a plurality of heads arranged around a longitudinal axis of the log, each head being spaced from said log and being rotatable about an axis lying substantially perpendicular to said longitudinal axis of the log, means for supplying Water under high pressure to each head, a pair of nozzles on each head spaced radially from the axis of rotation of their head on opposite sides thereof, all of said nozzles being directed generally towards the longitudinal axis of the log at all times and the nozzles of each head being inclined towards each other, and means for rotating the heads at high speed so as to direct a plurality of high velocity water jets in substantially compound cycloidal paths over the log surface as said log is moved through the apparatus.
- Barking or cleaning apparatus comprising conveying means for moving a log through the apparatus, a plurality of heads arranged around the longitudinal axis of the log, each head being spaced from said log and being rotatable about an axis lying substantially perpendicular to said longitudinal axis of the log, means for moving at least he of the heads towards and away from the conveying means without changing the angle of the axis of rotation of the head, means for supplying water under high pressure to each head, at least one nozzle on each head spaced radially from the axis of rotation of its head, said nozzles being directed generally towards the longitudinal of the log at all times, and means for rotating the heads at high speed so as to direct a plurality of high velocity water jets in substantially compound cycloidal paths over the log surface as said log is moved through the apparatus.
- Barking or cleaning apparatus comprising conveying means for moving a log through the apparatus, a shaft rotatab-ly mounted adjacent the conveying means, head mounted on the shaft and spaced from said log, said head being rotatable about an axis lying substantially perpendicular to a longitudinal axis of the log, a pair of nozzles the head spaced radially from the axis of rotation of the head on opposite sides thereof, said nozzles being directed generally towards the longitudinal axis of the log at all times and being inclined towards each other, a passage extending from a point in the shaft through the latter and the head to the nozzles, a plurality of ports in the shaft communicating with the passage therein, a chamber mounted on the shaft over the ports, sealing glands between the ends of the chamber and the shaft, means for supplying water under pressure to the chamber, means for rotating the shaft and head at high speed so as to direct two high velocity water jets from the nozzles in substantially compound cycloidal paths over the log surface as said leg is moved through the apparatus.
- said shafts and heads being mounted around a common center, a base for each shaft, one of said bases being fixed, means on each base for rotating its shaft, at least one support extending upwardly from the fixed base, one of the other bases being slidably mounted on said support, a fluid-operated cylinder mounted on the support for the slidable base and having a piston rod extending outwardly therefrom, a pair of pulleys on the outer end of the piston rod, a cable connected to the lower end of the slidable base and extending beneath a pulley mounted on the support below the cylinder and over one of the piston rod pulleys, the other end of said cable being anchored to the support, another cable connected to the upper end of the slidable base and extending beneath the other piston rod pulley and anchored to the support, both of said cables being of such length that the slidable base is in its closest position to the fixed base when the piston rod is in its outer position and in its farthest position from said fixed base when the rod is in its inner
- means directing a high velocity water jet on a log normal to the surface thereof means rotating the jet at high speed around an axis spaced therefrom and lying substantially perpendicular to a longitudinal axis of the log, and means for causing relative movement between the jet and log longitudinally of the latter, said rotating and relative movements moving the jet in a cycloidal path over the log surface longitudinally thereof at high speed.
Description
Dec. 8, 1953 SIMQNS 2,661,781
HYDRAULIC BARKING OR CLEANING APPARATUS Filed April 4, 1949 INVENTOR HOWARD A eLAN SINOMS Fatented Dec. 8, 1953 PATENT OFFHIE HYDRAULIC BARKING R CLEANING APPARATUS Howard Allan Simons, Vancouver, British Columbia, Canada Application April 4, 1949, Serial No. 85,449
This invention relates to improvements in apparatus particularly for removing bark from loss, but which may be used for cleaning these, and barking or cleanin timber slabs, and the like.
An object of the present invention is the provision of apparatus for hydraulically removin bark from logs by means of a scrubbing and eroding action.
Another object is the provision of apparatus having rotary sprays for barking logs and the like.
A further object is the provision of apparatus for removing bark from logs by means of one or more sprays which are directed approximately normally to the log surface while each spray is rotated at high speed about an axis lyin substantially perpendicular to said surface.
A further object is the provision of apparatus of the nature described which requires less water and less pressure than existing barkersfor doing the same job, and which is much simpler in construction and, consequently, less expensive'than the known devices.
A further object is the provision of apparatus for applying a moving jet of high pressure water to a log at a high velocity across the bark or the face of the log in a simple mechanical manner as compared to existing barkers.
A further object is the provision of apparatus having hydraulic nozzles mounted at such an angle that the water jet approaches a contact angle of 9G with the bark over the entire path of the jet on the log.
Yet another object is the provision of'a log barker which may employ any type of' conveyor for the logs, or which may be easily built around most log-carrying conveyors.
With the above and'other objects in view, the present invention consists essentially of hydraulic barking or cleaning apparatus including at least one rotary head having atleast one nozzle adapted to direct water from one side of the head at a point spaced from the'center of rotation thereof, and means for supplying water under pressure to the nozzle'while the head is rotating, as more fully described in the following specification and illustrated, by way of example, in the accompanying drawings, in which,
Figure l is an end elevation of the apparatus,
partly in section,
Figure 2 is a fragmentary plan view of the apparatus partly in section, and
Figure 3 is an enlarged sectional detail of a rotary head and associated elements.
While the appartaus illustrated in the draw- 11 Claims. (Cl. 144-208) ings includes three rotary heads, in which case the logs need not be rotated as they pass therebetween, it is to be understood that there may be only one rotary head, and suitable means may be provided for rotating each log. As there are many well-known devices for rotating logs, it is not necessary to describe or illustrate herein any such device.
The apparatus according to this invention for barking logs includes at least one rotary head It having at least one nozzle I I spaced radially from the axis of rotation [2 thereof, said axis lying substantially perpendicular-to a longitudinal axis of the log being cleaned or barked. It is preferable to employ a pair of nozzles, as shown,;in which case they are positioned radially on opposite sides of the axis of rotation. The head [0 may be mounted in any convenient manner, and any suitable meansmay be provided for supply ing water under pressure toits nozzle or nozzles while it is rotating.
In this example, each head Ill is mounted on the end of a shaft l5 rotatably mounted in suitable spaced bearings it carried by a base 17. This shaft is rotated by a motor [8 mounted on the base I! and connected to the shaft by pulleys 20 and 2|, a belt 22, a worm 23, and a worm gear 24, the latter being mounted on the shaft. A passage 20 extends through the shaft and the head to each of the nozzles Ii.
Suitable means is provided for supplying water under pressure to the nozzles while the head is rotating. This may be accomplished by means of a cylindrical chamber 36 through which the shaft [5 extends. Seals 3| are provided at the opposite ends of the chamber for preventing water from escaping therefrom alon the shaft. Water under pressure is supplied from a convenient source (not shown) to the chamber through a pipe 36, and said water passes from the chamber through ports 3'! into the passage 28 ViihiClil extends fromsaid chamber to the noz- -z es I.
With the apparatus described so far, the head I0 is; rotated by the motor :8, and water under pressure is sprayed from one side of the head through the nozzles ll. These nozzles maybe arranged so that the sprays converge. A log or any other surface to be barked or cleaned is moved past the rotating head so that the water sprays strike the surface normally.
In the illustrated apparatus, there are three rotary heads It arranged around a common center. In order to accommodate logsof various sizes it'is preferable to be able to move one or two of these heads in relation to the common center. For example, two of these heads may be mounted on supports and All lying substantially in the same vertical plane as the third head and diverging upwardly and outwardly therefrom. The base I? of each of these two movable heads is slidably mounted on its support, while the base of the third head is stationary, and suitable means is provided for shifting the movable bases up and down on their supports. Each of the latter bases may be moved by means of a hydraulic cylinder having a piston rod 46 projecting outwardly therefrom with pulleys 41 and 48 mounted on the outer end thereof. A cable 5!] is connected to the lower end of the base I! at 5| and extends around a pulley 52 mounted on the support, and up and over the pulley 41, after which it is anchored to the support at 53. Another cable 55 is anchored at E6 to the upper end of the base and extends over pulley 51, around pulley 53, and beneath the pulley e3, after which it is anchored to the support at 59. When the piston rod :28 is moved out of the cylinder 45, the cable 5d moves the base downwardly, and when the piston rod is moved in the opposite direction, the cable 55 moves it upwardly. At least a portion of the pipes 35 of the movable heads is flexible in order to permit this movement.
The three heads ill are arranged at approximately 120 in relation to each other. The nozzles H of each head converge slightly towards each other so that water therefrom is directed generally towards the common center. A log is moved through the space between the rotary heads on a suitable conveyor, such as rollers iii. The positions of the uppermost heads may be adjusted in order to accommodate logs of different sizes. The nozzles of each head are spaced from the log and rotate about an axis lying substantially perpendicular to a longitudinal .axis of the log, and streams of water under pressure are directed by said nozzles against the log normally to its surface. The water jets from the nozzles describe circles, and as the log moves continuously through the apparatus, the jets follow a compound cycloidal path over the surface. The heads and nozzles are preferably so arranged that the paths of the water from the nozzles overlap each other to ensure com- 4 plate coverage of the log sufacev This subjects the surface to a scrubbing and eroding action which completely removes bark, dirt and other material from said surface.
Since the water jet from each nozzle has a tangential velocity with respect to the circular path described by the nozzles, there will be a component along the log surface tending .at all times to out between the wood and the bark; also, there will be a component normal to the log surface, which will alternately be added to, or subtracted from, the axial velocity of the jet, and these eifects have been demonstrated to improve the efiiciency of barking. The normal component becomes additive whenever the jet path is moving more or less uphill, that is, when 'moving towards the longitudinal axis of the log. The log surface component of said jet has a marked eifect on the complete removal of bark. This utilization of the axial velocity of the jet and of the tangential velocity caused by the rotation of the head, is so effective that it even removes the c'ambium layer from logs and slabs.
While three rotary heads have been shown for logs, it is to be understood that only twp may 4 be used, in which case they would be opposed and the heads might have to be a little larger in proportion to the remainder of the equipment.
What I claim as my invention is:
1. In hydraulic barking or cleaning apparatus, a plurality of rotatably mounted shafts, a head mounted on each shaft and rotatable therewith, said shafts and heads being mounted around a common center, a base for each shaft, one of said bases being fixed, means on each base for rotating its shaft, supports diverging outwardly from the fixed base in substantially the same plane and on opposite sides of the shaft thereof, each of the other bases being slidably mounted on one of said supports, means for moving the slidable bases on their supports, a pair of nozzles on each head on opposite sides of the axis of rotation thereof, said nozzles being adapted to direct water generally towards the common center, a passage extending through each shaft and its head to the nozzles thereof, and means for supplying water under pressure to each passage.
2. In hydraulic barking or cleaning apparatus through which logs are moved, means for directing high velocity water jets on to the surface of each log moving through the apparatus, and means for rotating the jets around a common axis spaced therefrom and lying substantially perpendicular to a longitudinal axis of the log for causing said jets to follow substantially compound cycloidal paths along the log during movement of the latter.
3. Barking or cleaning apparatus comprising conveying means for moving a 10;; through the apparatus, a head spaced from said log and rotatable about an axis lying substantially perpendicular to a longitudinal axis of the log, means for supplying water under high pressure to the head, at least one nozzle on the head spaced radially from the axis of rotation of the head, said nozzle being directed generally towards the longitudinal axis of the log at all times, and means for rotating the head at high speed so as to direct at least one high velocity water jet in a substantially cycloidal path over the log surface as said log is moved through the apparatus.
4. Barking or cleaning apparatus comprising conveying means for moving a log through the apparatus, a head spaced from said log and rotatable about an axis lying substantially perpendicular to a longitudinal axis of the log, means for supplying water under high pressure to the head, a pair of nozzles on the head spaced radially from the axis of rotation of the head on opposite sides thereof, said nozzles being directed generally towards the longitudinal axis of the log at all times, and means for rotating the head at high speed so as to direct two high velocity water jets in substantially compound cycloidal pathsover the log surface as said log is moved through the apparatus.
5. Barking or cleaning apparatus comprising conveying means for moving a log through the apparatus, a plurality of heads arranged around a longitudinal axis of the log, each head being spaced from said log and being rotatable about an axis lying substantially perpendicular to said longitudinal axis of the log, means for supplying water under high pressure to each head, at least one nozzle on each head spaced radially from the axis of rotation of its head, said nozzles being directed generally towards the longitudinal axis of the log at all times, and means for rotating the heads at high speed so as to direct a plurality of high velocity water jets in substantially compound cycloidal paths over the log surface as said log is moved through the apparatus.
6. Barking or cleaning apparatus comprising conveying means for moving a log through the apparatus, a plurality of heads arranged around a longitudinal axis of the log, each head being spaced from said log and being rotatable about an axis lying substantially perpendicular to said longitudinal axis of the log, means for supplying Water under high pressure to each head, a pair of nozzles on each head spaced radially from the axis of rotation of their head on opposite sides thereof, all of said nozzles being directed generally towards the longitudinal axis of the log at all times and the nozzles of each head being inclined towards each other, and means for rotating the heads at high speed so as to direct a plurality of high velocity water jets in substantially compound cycloidal paths over the log surface as said log is moved through the apparatus.
7. Barking or cleaning apparatus comprising conveying means for moving a log through the apparatus, a plurality of heads arranged around the longitudinal axis of the log, each head being spaced from said log and being rotatable about an axis lying substantially perpendicular to said longitudinal axis of the log, means for moving at least he of the heads towards and away from the conveying means without changing the angle of the axis of rotation of the head, means for supplying water under high pressure to each head, at least one nozzle on each head spaced radially from the axis of rotation of its head, said nozzles being directed generally towards the longitudinal of the log at all times, and means for rotating the heads at high speed so as to direct a plurality of high velocity water jets in substantially compound cycloidal paths over the log surface as said log is moved through the apparatus.
8. Barking or cleaning apparatus comprising conveying means for moving a log through the apparatus, a shaft rotatab-ly mounted adjacent the conveying means, head mounted on the shaft and spaced from said log, said head being rotatable about an axis lying substantially perpendicular to a longitudinal axis of the log, a pair of nozzles the head spaced radially from the axis of rotation of the head on opposite sides thereof, said nozzles being directed generally towards the longitudinal axis of the log at all times and being inclined towards each other, a passage extending from a point in the shaft through the latter and the head to the nozzles, a plurality of ports in the shaft communicating with the passage therein, a chamber mounted on the shaft over the ports, sealing glands between the ends of the chamber and the shaft, means for supplying water under pressure to the chamber, means for rotating the shaft and head at high speed so as to direct two high velocity water jets from the nozzles in substantially compound cycloidal paths over the log surface as said leg is moved through the apparatus.
9. In hydraulic barking or cleaning apparatus, a plurality of rotatably mounted shafts, a head mounted on each shaft and rotatable therewith,
said shafts and heads being mounted around a common center, a base for each shaft, one of said bases being fixed, means on each base for rotating its shaft, at least one support extending upwardly from the fixed base, one of the other bases being slidably mounted on said support, a fluid-operated cylinder mounted on the support for the slidable base and having a piston rod extending outwardly therefrom, a pair of pulleys on the outer end of the piston rod, a cable connected to the lower end of the slidable base and extending beneath a pulley mounted on the support below the cylinder and over one of the piston rod pulleys, the other end of said cable being anchored to the support, another cable connected to the upper end of the slidable base and extending beneath the other piston rod pulley and anchored to the support, both of said cables being of such length that the slidable base is in its closest position to the fixed base when the piston rod is in its outer position and in its farthest position from said fixed base when the rod is in its inner position, a pair of nozzles on each head on opposite sides of the axis of rotation thereof, said nozzles being adapted to direct water generally towards the common center, a passage extending through each shaft and its head to the nozzles thereof, and means for supplying water under pressure to each passage.
10. In hydraulic barking or cleaning apparatus, means directing a high velocity water jet on a log normal to the surface thereof, means rotating the jet at high speed around an axis spaced therefrom and lying substantially perpendicular to a longitudinal axis of the log, and means for causing relative movement between the jet and log longitudinally of the latter, said rotating and relative movements moving the jet in a cycloidal path over the log surface longitudinally thereof at high speed.
11. In hydraulic barking or cleaning apparatus, means directing a plurality of high velocity jets towards a log, said jets being inclined towards each other, means rotating the jets at high speed around a common axis spaced therefrom and lying substantially perpendicular to a longitudinal axis of the log, and means for causing relative movement between the jets and log longitudinally of the latter, said rotating and relative movements moving the jets in compound cycloidal paths over and longitudinally of the log surface at high speed.
HOWARD ALLAN SIMONE.
References Cited in the file of this patent UNITED STATES PATENTS Number Name Date 1,660,345 Merseles Feb. 28, 1928 1,730,658 Jensen Oct. 8, 1929 1,928,621 Frede et al Oct. 3, 1933 1,953,311 Peik Apr. 3, 1934 1,969,914 Swigert Aug. 14, 1934 2,422,757 Swift June 24, 1947 2,473,461 White June 14, 1949 2,488,041 Swift NOV. 15, 1949 2,578,804 Holveck et a1 Dec. 18, 1951
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US85449A US2661781A (en) | 1949-04-04 | 1949-04-04 | Hydraulic barking or cleaning apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US85449A US2661781A (en) | 1949-04-04 | 1949-04-04 | Hydraulic barking or cleaning apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US2661781A true US2661781A (en) | 1953-12-08 |
Family
ID=22191671
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US85449A Expired - Lifetime US2661781A (en) | 1949-04-04 | 1949-04-04 | Hydraulic barking or cleaning apparatus |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US2661781A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2709465A (en) * | 1954-04-12 | 1955-05-31 | Hansel Sydney | Oscillatable bark-removing elongate jet providing continuously parallel lines of impingement |
| US2765012A (en) * | 1954-08-30 | 1956-10-02 | Sumner Iron Works Inc | Oscillatable bark-removing jet continuously directed toward axis of a passing log |
| US3158325A (en) * | 1963-10-11 | 1964-11-24 | Nicholson Mfg Company | Oscillating nozzle assemblies for hydraulic log barkers |
| US4723715A (en) * | 1984-05-30 | 1988-02-09 | The Curators Of The University Of Missouri | Disintegration of wood |
| US5035362A (en) * | 1984-01-26 | 1991-07-30 | Marian Mazurkiewicz | Disintegration of wood |
| US5753289A (en) * | 1995-03-10 | 1998-05-19 | Ness; Richard B. | Portable food container and method for storing and dispensing dry and liquid food |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US1660345A (en) * | 1921-04-07 | 1928-02-28 | Hobart Mfg Co | Washing machine |
| US1730658A (en) * | 1927-08-15 | 1929-10-08 | Soren K Jensen | Can-washing apparatus |
| US1928621A (en) * | 1928-09-17 | 1933-10-03 | Gen Steel Castings Corp | Apparatus for cleansing or blasting castings or other articles |
| US1953311A (en) * | 1931-03-14 | 1934-04-03 | American Foundry Equip Co | Rotary gun |
| US1969914A (en) * | 1933-04-25 | 1934-08-14 | Ernest G Swigert | Apparatus for barking logs |
| US2422757A (en) * | 1944-01-17 | 1947-06-24 | Frank H Swift | Hydraulic barker |
| US2473461A (en) * | 1945-05-19 | 1949-06-14 | Frank O White | Hydraulic barking machine |
| US2488041A (en) * | 1946-10-03 | 1949-11-15 | Crown Zellerbach Corp | Hydraulic debarking method |
| US2578804A (en) * | 1946-04-30 | 1951-12-18 | Worthington Pump & Mach Corp | Hydraulic-type log debarker having centripetally directed jets mounted in circumferential groups radially adjustable for different size logs |
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1949
- 1949-04-04 US US85449A patent/US2661781A/en not_active Expired - Lifetime
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1660345A (en) * | 1921-04-07 | 1928-02-28 | Hobart Mfg Co | Washing machine |
| US1730658A (en) * | 1927-08-15 | 1929-10-08 | Soren K Jensen | Can-washing apparatus |
| US1928621A (en) * | 1928-09-17 | 1933-10-03 | Gen Steel Castings Corp | Apparatus for cleansing or blasting castings or other articles |
| US1953311A (en) * | 1931-03-14 | 1934-04-03 | American Foundry Equip Co | Rotary gun |
| US1969914A (en) * | 1933-04-25 | 1934-08-14 | Ernest G Swigert | Apparatus for barking logs |
| US2422757A (en) * | 1944-01-17 | 1947-06-24 | Frank H Swift | Hydraulic barker |
| US2473461A (en) * | 1945-05-19 | 1949-06-14 | Frank O White | Hydraulic barking machine |
| US2578804A (en) * | 1946-04-30 | 1951-12-18 | Worthington Pump & Mach Corp | Hydraulic-type log debarker having centripetally directed jets mounted in circumferential groups radially adjustable for different size logs |
| US2488041A (en) * | 1946-10-03 | 1949-11-15 | Crown Zellerbach Corp | Hydraulic debarking method |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2709465A (en) * | 1954-04-12 | 1955-05-31 | Hansel Sydney | Oscillatable bark-removing elongate jet providing continuously parallel lines of impingement |
| US2765012A (en) * | 1954-08-30 | 1956-10-02 | Sumner Iron Works Inc | Oscillatable bark-removing jet continuously directed toward axis of a passing log |
| US3158325A (en) * | 1963-10-11 | 1964-11-24 | Nicholson Mfg Company | Oscillating nozzle assemblies for hydraulic log barkers |
| US5035362A (en) * | 1984-01-26 | 1991-07-30 | Marian Mazurkiewicz | Disintegration of wood |
| US4723715A (en) * | 1984-05-30 | 1988-02-09 | The Curators Of The University Of Missouri | Disintegration of wood |
| US5753289A (en) * | 1995-03-10 | 1998-05-19 | Ness; Richard B. | Portable food container and method for storing and dispensing dry and liquid food |
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