US2746498A

US2746498A - Log-receiving trough having a rotating log-end stop and a bark-removing auger

Info

Publication number: US2746498A
Application number: US510689A
Authority: US
Inventors: Reginald R Holycross
Original assignee: Individual
Current assignee: Individual
Priority date: 1955-05-24
Filing date: 1955-05-24
Publication date: 1956-05-22
Anticipated expiration: 1973-05-22

Description

May 22, 1956 R. R. HOLYCROSS LOG-RECElVING TROUGH HAVING A ROTATING LOG-END STOP AND A BARK-REMOVING AUGER Filed May 24, 1955 2 Sneets-Sheet 1 mm m s S 2. m we 2 m o .T mw n y INVENTOR.

2 Sheets-Sheet 2 HOLYCROSS REG ALD E- o -YCROQS WWMWW May 22, 1956 LOGRECEIVING TROUGH HAVING A ROTATING LOG-END STOP AND A BARKREMOVING AUGER Filed May 24, 1955 M ME FIRE-I.

ATTOZNEYS United States Patent O 2,746,498 LOG-RECEIVING 'rnouorr HAVING A ROTATING LgG-END STOP AND A BARK-REMOVING A GER Reginald R. Holycross, Goldenda'le, Wash. Application May 24, 1955, Serial No. 510,689

5 Claims. Cl. 144-408 This invention relates to log-barking, apparatus, and has for its main object the provision of a generally improved apparatus of this type, so designed as to efficiently bark ation withthe auger, a trough cooperating with the auger to maintain thelog in predetermined position against one side of the trough, in which position the log will be continuously rotated to provide uniform barking thereof over its full length and throughout its entire circumference.

Still another object is to associate with the auger and trough a flap hingedly connected to one of the trough side walls, for swinging movement into a position in which it is connectable to and is spaced from the other side wall, to cooperate with the other side Wall in defining a space within which the log will be confined in the position in which it is to be rotated.

A further object is to associate with the parts previously mentioned an end stop for the log which will hold the log against movement longitudinally of the trough, and which will be so designed as,when the log is held in the previously designated position, tosupplement the rotative force exerted on the log by the auger to insure proper turning of the log during the barking action.

Yet another object is toprovide a guide means adapted to simultaneously rotate the stop and auger in opposite directions, in acoactiverelationship which will aid measurably in the barking of the log. A d

Other objects will appear from the following description, the claims appended thereto, and from the annexed drawings in which like reference characters designate like parts throughout the several views and wherein:

Figure 1 is atop plan view'of anapparatus formed ac- 2,746,498 Patented May 22, 1956 'is provided a bearing post 26, having adjacent its lower end a bearing 28, held in place by a cover plate 30.

Over the full distance between

bearings

16, 22, the frame is provided with transversely spaced, relatively low, vertically disposed flanges 32, defining between them an open space constituting the open bottom of a trough to be described in detail hereinafter. Mounted above the open space is an elongated, horizontally extending auger shaft 34,'journaled in the

several bearings

16, 18, 22, 28, and spiralling about said shaft is an auger blade 36 having uniformly spaced, relatively deep, V-shaped notches providing a discontinuous outer edge on the auger blade.

Keyed or otherwise secured to the shaft 34 for rotation therewith is a pinion 40, in mesh with'a large diameter gear 42 integrally formed with a thickened, large diameter portion 44 having a roughened face. The roughening of the face of the gear Wheel can be accomplished by coating the same with a coarse abrasive, or may be accomplished in any other manner designed to produce a frictional engagement between the face of the gear wheel and the adjacent end of a log L supported upon the auger.

The gear wheel has a center opening, receiving one end of a stub shaft 46, having a circumferential shoulder 48 intermediate its ends against which is engaged a bearing 50 carried upon a lateral arm 52 rigidly formed upon the upstanding post 26. I At the upper end of post .26 there is provided a bearing 54, aligned coaxially with bearing 56 to receive the stub shaft, and braces 56 are cording to the presentinvention, a portion of the appara- 't'us being broken away;

Figure 2 is a longitudinal sectional view on line 2-2 of Figure 1 on an enlarged scale;

Figure 3 is a transverse sectional view on line 3-3 of Figure 2, on a reduced scale;and

Figure 4 is a transverse section on line 4-4 of Figure 2,;d'rawn.to the same scaleas Figure 3. i

The reference numeral 10 generally designates a support frame, provided at oneend with a vertically disposed end wall 12, braced in its vertical position by braces '14.

Mounted on the end wall '12 is a bearing 16, spaced longitudinally of the frame 10 and coaxially aligned with a bearing 18 mounted upon a support 20. A bearing 22 is aligned coaxially with the bearings 16, 18, and is carried by an upstanding support plate 24.

2 At the end of the frame remote from end wall 12 there used to reinforce the post against deviation from its vertical position.

A driven pulley 58 is keyed or otherwise secured to the shaft 34 for rotation therewith, and has a plurality of side by side peripheral grooves receiving drive belts 60, that are trained about a drive pulley 62 smaller in diam eter than the driven pulley, and secured to the shaft of a drive motor 64.

The upstanding flanges 32 are integrally formed upon a bottom plate of the frame, and projecting upwardly from the. opposite longitudinal edges of said bottom plate (see Figure 3) are spaced supporting

legs

66, 68 respec-- tively, these being welded or otherwise fixedly attached at their upper ends to upwardly diverging

side walls

70, 72. The side walls are of elongated formation as shown in Figure 1, and cooperate with the flanges 32 in forming an open-bottomed, elongated trough in whichthe log L is disposed .while being barked.

Secured to the outer surface of the side wall '70, and spaced longitudinally of said side wall, are downwardly turned hooks 74. A flap 76 extends for the greatest part of the length of the side wall 72, and is hingedly connected to side wall 72 as at 78, for swinging movement between the positions thereof shown in Figures 3 and 4 respectively. Carried by the flap 76 are relatively short flexible elements 80, such as short lengths of rope, the free ends of which are provided with loops 82 engageable with the hooks 74 in the manner shown in Figure 4.

The flap 76 cooperates with the side wall 70 in defining therebetween a space in which the log L will be confined. It will be noted, from Figure 4, that the log, when so confined, is spaced laterally of a vertical plane passing through the axis of rotation of the auger, and it will further be noted that the axis of rotation of the wheel 44 parallels and is spaced above the center of rotation of the log dur* ing the barking action, assuming that the log is of the normal diameter used in a particular logging operation, such as preparing logs for being broken up into chips during the manufacture of'paper. The vertical plane mentioned also passes through the axis of the wheel 44, and the wheel 44 has its axis of rotation spaced above the periphery of the auger a distance approximately equal to the length of the radius of the wheel 44, as shown in Figure 4.

Due to the particular driving arrangement between the prime mover 64 and the auger and gear wheel respectively, the auger will be rotated in a clockwise direction, viewing the same as in Figure 4, while the wheel will be rotated in a counterclockwise direction. The log of course will be rotated oppositely to the auger, in a counterclockwise direction, and being engaged at its endby the roughened face of the wheel 44 adjacent the margin of said wheel 44, will be rotated also by the wheel. The wheel thus supplements the rotative action exerted upon the log by the auger, and' assuresthe uniform and continuous turning of the log during the barking operation. At the same time, the wheel provides an end stopjholding the log against movement longitudinally of the auger, which movement would naturally tend to occur due to the tendency of the auger to feed the log in one direction.

The discontinuous edge ofrthe auger blade bites into the rough bark of the log, to insure the turning of the log, and at the same time, continuously breaks away the bark from the log surface, the broken off bark gravitating to the bottom of the trough. It will be understood that below the open bottom of the trough there can be provided a belt type conveyor'or any other suitable means employed-to carry ofi the falling pieces of bark.

The device can be permanently maintained at any desired location, or if desired, can be transportable, so as to be used in a saw mill, beside a mill pond, or at any other location at which the barking operation is to be performed.

It is believed apparent that the invention is not necessarily confined to the specific use or uses thereof described above since it may .be utilized for any purpose to which it may be suited. Nor is the invention'to be necessarily limited to the specific construction illustrated and described, since such constructionis only intended to be illustrative of the principles, it being considered that'the invention comprehends any minor change in construction that may be permitted within the scope of the appended claims. l

What is claimed is:

1. Log-barking apparatus comprising a channeled sup-' port frame; an auger journaled therein to support a log to be barked, said auger including a blade having adiscontinuous log-engaging edge for simultaneously barking and rotating, in a direction opposite to the direction of the auger, a log extending within said frame; stop means mounted on the frame for rotation in a direction opposite to that of the auger and having a roughened face frictionally engaging one end of a log to hold such log against movement longitudinally of the auger, such an end of such a log being frictionally engaged at a location effective to supplement the turning force exerted on such .a logby the auger; and means on the frame for driving said auger and stop means.

2. Log-barking apparatus comprising a channeled support frame; an auger journaled therein to support a log to be barked, said auger including a blade having a discontinuous log-engaging edge for simultaneously barking and rotating, in a direction opposite to the direction of rotation of the anger, at log extending within said frame; a wheel mounted on the frame for rotation in a direction opposite to that of the auger, said wheel having its axis of rotation paralleling that of the auger, the wheel having a roughened face frictionally engaging one end of a log to hold such log against movement longitudinally of the auger, such an end of such a log being frictionally engaged by said face at a location effective to supplement the turning force exerted on such a log by the auger; and means on the frame for driving said auger and wheel.

- 3. Log-barking apparatus comprising a channeled support frame; an anger journaled therein to support a log continuous log-engaging edge for simultaneously barking and rotating, in a direction opposite to the direction of rotation of the auger, a log extending within said frame; a wheel substantially greater in diameter than the auger, mounted on the frame for rotation in a direction opposite to that of the auger, said wheel having its axis of rotation paralleling the axis of rotation of the auger and spaced from the periphery of the auger a distance approximately equal to the length of the wheel radius, the wheel having a roughened face frictionally engaging one end of a log at a location eifective to supplement the turning force exerted on such log by the auger, said face extending as an abutment holding such log against movement longitudinally of the auger; and means on the frame for driving said auger and wheel.

4. Log-barking apparatus comprising a support frame formed with a-log-receiving trough including a pair of upwardly diverging side walls; an auger journaled in the bottom of the trough to support within'the trough a log to be barked, said auger including a blade having a discontinuous log-engaging edge for simultaneously barking and rotating, in a direction opposite to the direction of rotation of the auger, such a log; a wheel substantially greater in diameter than the auger mounted on the frame at one end of the trough for rotation in a direction opposite to that of the auger,'said wheel having its axis of rotation paralleling the. axisof rotation of the auger and spaced above the periphery of the auger a distance approximately equal to the length of the wheel radius, the wheel having a roughened face frictionally engaging one end of a log to hold such log against movement longitudinally of the auger, such an end of such a log being frictionally engaged by said face at a location adjacent the margin of the wheel, whereby said wheel supplements the turning force exerted on such a'log by the auger; and means on the frame for driving said auger and wheel.

5. Log-barking apparatus comprising a support frame formed with a log-receiving trough including a pair of upwardly divergent side walls and a hinged flap on one of the side walls adapted when swung to one position to be connected to the other side wall to confine between the flap and other side wall a log to be barked; an auger journaled in thebottom of the trough to support within the trough a log to be barked, said auger including a blade having a discontinuous log-engaging edge for simultaneously barking and rotating, in a direction opposite to the direction ofrotation of the auger, such a log; a wheel substantially greater in diameter than the auger mounted on the frame at one end of the trough for rotation in a direction opposite to that of the auger, said Wheel having its axis of rotation paralleling the axis of rotation of the auger and spaced above the periphery of the auger a distance approximately equal to the length of the wheel radius, the wheel having a roughened face frictionally engaging one end of a log to hold such log against movementlongitudinally of the auger, such an end of such a log being frictionally engaged by said face at a location adjacent the margin of thewheel, whereby said wheel supplements the turning force exerted on such a log by the auger; and means on the frame for driving said auger and wheel.

References Citedjin the file of this patent UNITED STATES PATENTS Sharkey Apr. 3, 1934 AAA 4