US1060928A - Rossing apparatus for removing bark from logs. - Google Patents

Description

0. J. MILLS.

ROSSING APPARATUS FOR REMOVING BARK FROM LOGS.

APPLICATION FILED SEPT.]., 1911. 1,660,928}, Patented May 6, 1913.

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M Y J Orra'e 6' Q affwwsf I APPLICATION FILED SEPT. 1, 1911.

Patented May 6, 1913.

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asses W4 Orrie JJVL'ZZ-t 0. J.- MILLS ROSSING APPARATUS FOR REMOVING BARK FROM LOGS.

APPLIGATION IILEI) SEPT. l, 1 911.

. Patented May 6, 1913.

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ORRIE 3'. MILLS, OF HUDSON FALLS, NEW YORK.

ROSSING APPARATUS FOR REMOVING BARK FROM LOGS.

Specification of Letters Patent.

Patented May 6,1913.

Application filed September 1, 1911. Serial No. 647,138.

To all whom it may concern: Be it known that I. ORRIE J. Mints, a citizen of the United States, residing at Hudson Falls, New York, have invented certain new and useful Improvements in Rossing Apparatus for Removing Bark from Logs of which the following is a clear, full, and 6X act description.

This invention relates to a rossing apparatus for removing the bark from logs with as little waste 0 the wood as possible, and although the embodiment shown is more particularly desi ned for handling long logs such as telegraph poles and the like, it is understood that the chief features of my apparatus are equally well adapted to operateon small logs. "1n log-barking machines heretofore employed, the barker proper or cutting-knife is usually mounted immovable bearings and the log is forced up against the same by suitable means to obtain the proper adjustment of cut.

In the present improvement I have produced an apparatus whereby the barker has a universally adjustable mounting relative to'a log-supporting carriage so that it may be adjusted for any desired out upon the log on said carriage, and, moreover, 1s arranged so that the pressure of the cut may be under the easy control of an operatorat all times.

My invention consists further in various details of construction and in the general combination of parts whereby the operation.

of the machine is generally improved and rendered more simple and efficient in control, all of which will be hereinafter described, while the scope of my invention will be pointed out in the appended claims.

In the preferred embodiment of my invention as shown in the accompanying drawings, Figures 1 and 1 show in separate halves a plan view of the front portion of the machine; Fig. 2 shows a side view of the entire machine with the front portion thereof in section; Fig. 3 is a detail section along line 3-3 of Fig. 2; Fig. 1 is a detail sec-- tion through line H of Fig. 2; Fig. 5 is a detail section of the butter connection through line 55 of Fig. '2; and Fig. (3 is a section of the operating cylinder through line 6-6 of Fig. 2.

Referring more particularly to Fig. 2 of the drawings, 1 indicates the upright stationary supporting frame for the barker,

and 20 from asuitable source 0 and mounted in bearings at the front portion of the same is a vertical operating'shaft 16 adapted to be rotated through fgears 19 ower, such as belt pulley 21. Vertically siidable upon the front of this frame is mounted a yoke 3 having collars 3* and 3 surrounding the shaft 16, between which is mounted a sleeve 2 of the swinging barker frame 2. The slidable yoke 3 has a rearwardly extending tail-piece 38 engaging a verticall disposed screw-shaft 39,- whereby said yo e 3 and supported barker frame 2 are vertically adjusted by the turning of the same. The shaft 39 may be a erated by bevel gears 40, 41 and hand-whee 42. The sleeve 2 of the swinging barker frame 2 has fixed to its lower end a worm gear 43 engaged by a.

similar gear 44. This gear 44 is mounted in the lower extension 3 of the yoke 3 and is provided with a crank 45 for turning the same and swinging frame 2 in different posi tions around shaft 16. The front portion of the swinging barker frame 2 is formed into a casing 4, in which is slidably mounted a bearing sleeve 7 (shown in Fig. 4), having lateral feather portions 24 guided in slots 5 and 6 of said casing 4 as shown. Adjusting nuts 9 and 10, together with bearing pieces 9 and 10 respectively; may be provided in these slots for guiding the-sleeve? in its reciprocations.

Rotating within the bearing sleeve 7 is the shaft 8 carrying at its'outer end the knifecarrier or cutter 22 of the barker. This knife-carrier may be of any usual form having the knives 23 for rossing bark and need not be more particularly described.

The cutter 22 may be replaced if desired by.

a grindstone or the like when light work is to be performed. The shaft 8 is rotated by means of a gear 11 engaging with a long pinion 12 carried on shaft 13 mounted in said casing 4, said shaft 13 being in turn operated through bevel gears 14: and 15 from shaft 16. suitable keyed connection to the shaft 16, such as by key 17 and slot 18, so that it may slide thereon and rotate therewith dur ing the vertical adjustments of yoke 3.

At the upper portionof the barker frame '2 is mounted my preferred means for moving the rotary knife-carrier and its shaft 8 backward and forward withm the casing 1. Said means in the present embodiment consist of a power cylinder 26 having a piston The bevel gear 15 has a 26" nil rod 8 working therein. The mo vements at the piston are controlled by a suitab e valve chest 27 as shown, having inlet and utlet parts 31 and 32 and valve of. 29 o erated b laud lever 80, The piston rod 8 oi he cylinder :26 is connected to the rotating shaft 8 of the knife carrier 25a through a boiler casing 25, which also haS lat ral feathers 24E" aided in the slots and 6 of the casing a, wherebysaid shafts and their connection slide freely backward and forward within said casing 4.

Referring more particularly to Fig. 5, it

wiil be seen that the ends .oithc piston rod 8 and shaft 8 are inclosed and connected by means of a butter boll: 63 in the interior of said casing 25. The end of the piston rod 8* extends within the box 33 and is provided with a disk 3; at its end, above and below which are seated coil springs 35, 6 respectively. The rotating shaft 6 is connected at its end to the box b3 by ball-bearings, whereby it "may rotate relatively thereto. It will be seen by this construction that l have provided a yielding connection be tween the ends of the piston rod 6 and the shaft '8, whereby all violent shocks are absorbed in their reciprocations, and moreover shaft 8 is so connected that it may rotate freely without rotating any of the other parts,

The log-carriage in the present embodiment comprises a frame. of considerable length adapted to travel backward and forward in front of the barker or knife-carrier 92 for presenting the log thereto. This frame may be made up of lengthwise beams l6 and 48 carrying on their underside bearings for shafts 49, having grooved wheels 49 thereon traveling on the rails 50. Crossbeams 17 connect the lengthwise beams 46 and 4 .8, and said cross-beams as shown are preferably mounted so as to incline from hheir inner ends adjacent the barker downwardly toward their outer ends as shown in Fig. 2. Supplemental lengthwise beams 46 and 46 may be mounted above the cross beam 4:7, and are connected by additional slot-ted cross-beams 63 to form the bed proper of the carriage. Carried in. bearings at the forward ends of beams 47 is a shaft 70, upon which are fixed at'suitable intervals sprockets 72, and likewise u on the rear end of said beam 47 is mounte a shaft 71 carrying sprockets ,73. Extending around each pair of sprockets 72 and 73 is an endless toothed feeding chain 74 guided across the bed of the carriage through-the slotted beam 63. I also prefer to slidably mount at suitable intervals along the bed of my carriage bumpers 64 which have a vertical abutment as at their forward ends, and a rack 65 at their rear ends engaging with the gear 66 of shaft 69. Toothed backward and forward across the log ting faces 64 of the bumpers provide a jaw-like support for receiving the log.

The parallel shafts 69 and 71 extending across the rearends of thecross-beams 47 of the carriage may be rotated in either direction for causing the toothed chains 74 and the bumpers 64; to travel transversely carriage. These shafts 69 and 71 maybe also rotated during the Ian thwise travel of the.

carriage and/are suita- 1y operated as follows: Referring more particularly to Fig. 1 1 have shown parallel driving shafts 69 and 7lwhich are mounted in non-traveling bearings 100 and 101, and it is understood that the. log-carria e travels in its length wise direction Wit the shafts 69 and 71 in parallel. relation with the shafts 69 and 71*. The shaft 69 may be operated in either direction by means of oppositely-rotatings pulleys 80 and 81 and reversible clutch 89%,

Theadjacent ends of shafts 69*" and 69 which overlap during the travel of the log.- carriage are. formed square in cross-section, and have slidably' mounted thereon pinions 75 and 76 in engagement with one another, which pinions are carried within bearing. yoke 77 slidably mounted upon both shafts 69 and 69?, although not rotatable tl1er-' It is understood of course that the,

with. pinions 75 and 76 are connected so as to 1'0- tate with their respective shafts and arev kept in mesh by the bearing yoke 77 sliding therewith. Shaft 71* is likewise rotated in either direction by pulleys 8'2 and 83 and reversible clutch 84". The adjacent ends of shafts 71, 71 are also made square, having. slidably mounted thereon and rotatable therewith pinio-ns 78, 78 respectively. The

bearing yoke 7 9 connecting the two shafts acts to keep, said pinions 78 and 7 8 in mesh,

during their sliding movement. The bearing yokes 77 and 79 are freely slidable upofr the ends of the shafts which they respec-- tively connect and are not rotatable therewith, and it is obvious that through this construction an operable connection is maintained between the respective shafts 69*. and 69, 71 and 71 during the lengthwise travel of the log-carriage. The reversible clutchfrom a hand-lever 93 through ,c6nnecting rod 92, bell-crank lever 91, rod 90 and lever 89 of the operating shaft 69 is operated l i 89. Similarly, the reversible clutch 84" is operated from. hand-lever 88 through red 87, I

boil-crank lever 86, rod. 84 and lever 84*.

"For giving movement to the traveling logc'arriage there is provided on' the under side of the same a suitable rack 51 engaged by gear 52 carried on shaft 54 and operated through gears 55 and 56 from a clutch 59. The reversible" clutch 59 is adapted to engage with either pulley 57 or 58, which, it is understood, rotate in opposite directions. Said clutch is controlled from a lever 62 through rod 62", bell-crank 61, rod and lever 59.

The tool carrier which supports the shaft 8 of the rossing tool isarranged so that the thrust of the rossing tool against the log is in a line passing between the points of support of the log, that is, between the points at which it engages the chains 7& on its underside and the bumpers 64 on its innerside. From this arrangement the thrust assists in holding the log in place. Furthermore, as the rossing tool cuts upon its forward plane face, the tendencies of the rossing tool to rotate the log neutralize each other. In other words, the abrading or rossing tool cuts in a plane transverse to the axis of rotation.

Operation: The operation of this apparatus may be brieflysummarized as follows.

The log being placed upon the bed of the carriage when the same is at one side of the barker, the operator manipulates lever 62 to start the carriage in its travel past the barker, which, it is understood, is being rotated at a suitable speed for rossing the bark. During the travel of the carriage past the barker, the operator by moving lever 88 causes the conveying chain to move in the direction of the arrow in Fig. 2, whereby the log is slowly turned over upon its bed. The toothed idlers 67 during its move ment tend to keep the log from shifting in a lengthwise direction relative to the bed of said carriage. To bring the log in its proper position at the front portion of the carriage, the operator may also manipulate lever 93, which causes the bumper 64. to move said leg forward. It is also understood that during this rossing-action upon the bark, the operator may accurately adjust his barker for proper cutting by turning hand-wheel 42 which raises the barker, and if the log tapers toward one end, the action of the barker may be inclined relatively to the axis of said log by swinging the same upon its sleeve 2 through the manipulation of adjusting crank 45. In this way the barking knives 23 may be made to act upon the log at just the point and angle desired. Moreover, if the operator suddenly wishes=to withdraw the barker from the log due to the encountering of knots or uneven places, he manipulates "alve lever 30, which through the cylinder 27, quickly withdraws the knifecarrier from contact with the log and yet may be quickly returned to action upon the same by the further manipulation of lever 30.

It will thus be seen that in my apparatus I have provided means for handling logs of an extensive length and am enabled to adjust the knife'carrier of the barker in any I desired relation to the log, and also accurately control the pressure with which said knives bear upon the log during their action. Furthermore, it is to be'observed that control of all the different parts of the machine is brought to the same locality, whereby a single operator may stand in 0 sition to observe carefully the work bem done, and by the manipulation of the di 1 ferent levers within his reach may control and adjust the action of the machine.

It is further understood that when the log I has been completely rossed, the same may.- be easily removed from its bed by manipulating levers 88 and 93 to reverse the travel l of chain 74 from that shown by the arrow in Fig. 2, and to also move the bumpers 64 forward and on their bed. This cooperative action of both chains 74 and 64 will quickly; deliver the log from its bed upon any-suitabletable arranged to receive the same. j 'f What I claim is:

1. In a log-barking machine in combina-. tion, a supporting bed for said log, a rotatable knife-carrier and a supporting frametherefor, means under the control ofthe operator for moving said knife-carrier in said frame toward and away from said log comprising areciprocating piston and a yielding buffer connection between said piston and knife-carrier, means for rotating said carrier during its reciprocation, and. means for moving said log past said knife carrier.

2. In a log-barking machine in combination', a supporting bed for said log, a ro-I tatable knifecarrier and a supporting frame therefor, means under the control of the" operator for moving said knife-carrier in said frame toward and away from said log comprising a reciprocating piston and a yielding buffer connection between said pis-" ton and knife-carrier, said yielding connection provided with means for allowing said knife-carrier to rotate without rotating said piston, means for rotating said knife-car? ricr during its reciprocation, and means for moving said log past said knife-carrier.

3. In a log-barking machine in combination, a supporting bed for said log, a ro-l tatable knife-carrier and a swinging frame for supporting the same, means for adjusting said frame and carrier at different angles relative to the axis of said log, means for reciprocating said knife-carrier. in said-f frame toward and away from said log, means for rotating said carrier during its" reciprocations, and means for moving said loo" past said knife-carrier. i e

relative to the axis of said log and also vertically with respect to said log, means for re- 4 ciprocating said knife-carrier in said frame jto'vwardand away from said log, means for rotating said carrier during its reciprocationsfiand means for movin said g past said krife-carrier.

" 5. Ya a log barking machine in combinatlon, a supporting bed for the log, bumpers mounted on said ig bed arranged to move thrust of said tool on the log passes between transversely thereon, a rotatable rossing tool and an adjustable supporting frame therefor holding said rossing tool opposite to said bumpers and arranged so that the line of the points of support of the log on said bed and said bumpers, and means for moving bumpers and arranged so that the line of said log past said rossing tool.

6. In a log-barking machine in combina tion, a supportin bed for said log, a rotatable knife-carrier and an adjustable supporting fram'e therefor, means for rotating said knife-carrier in said frame, log bumpers mounted on said log-bed to move transversely thereon for holding said log against the knife-carrier, log-rolling devices mount ed onsaid bed, and separate means under the control of the operator for operating said'log-rolling devices and said leg. bumpers atdesired times, and means for moving 'tion, a traveli said log past said knife-carrien 7. In a log-barking machine in combinacarriage for supporting said log, a, rotatab e knife-carrier and an adjustable supporting frame therefor, means forirotatinfg said knife-carrier in said frame,

logbumpers mounted on said carriage to i move transversely thereon for holding said log against'thc knife-carrier toothed idlers mounted on said'bumpers for preventing the endwise shifting ofsaid iogrelative' to said carriage, and means under the control of the'operatorfor operating said log bumpers win-either direction during themovements of said carriage.

8. Ina log-barking machine in combination, a; travelin justable supporting frame therefor, means for rotating said knife-carrier in said frame,

- log bumpers mounted on said carriage to move transversely thereon for holding said leg against the knife-carrier, toothed idlers mounted on said bumpers for preventing the endwi'se shifting of said log in both relative to said carriage, endless conveying chains carriage for supportingv A 7 a said log, a rotatable knife-jcarrier'and an admasses 7 said chains and said log bumpers in either direction during the movements of said carriage.

9. In a log-barking machine in combination, a traveling carriage for said log comprising an inclined bottom, and log bumpers mounted thereon for moving transversely thereof, said bumpers having abutting faces rising at an acute angle from said inclined bottolm'a rotatable knife-carrier and a vertically-adjustable and laterally-swinging frame for supporting the same, means for adjusting said frame and carrier at difi'erent angles relative to the axis of said log? means for rotating said lmife-carrier in said frame, and means for moving said traveling log-carriage past said knife-carrier.

10. In a log barking machine in combination, ,a supporting bed for the log, bumpers mounted on said log bed arranged to move transversely thereon, a rotatable rossing tool and an adjustable supporting frame therefor holding said rossing tool opposite to said 11. In a log-barking machine in combination, alog support adapted to receive a log,

- means for turning said leg on saidsupport,

an opposed abrading cutter rotatably supported and arranged to engage the outer face only of the log, and movable in a plane transverse to the'longitudinal axis'of the said log support toward and away from said log support, means for moving said log support longitudinally past said cutter, and means for forcing said rotating cutter against said log support with a yielding pressure.

12. In a log barking machine in combination,'a supporting bed for the log, bumpers mounted on said log bed arranged to move transversely thereon, a rotatable rossing'tool and an adjustable supporting frame therefor holding said rossing tool opposite to said bumpers and arranged so that the line of thrust of said tool on the log passes be tween the point of support of the log on said bed and said bumpers, means for moving said log past said rossing tool, said rossing tool having an abrading face disposed in a plane transverse to the axis ofrotation thereof, and means for adjusting said supporting frame to change the angular position-o the axis of rotation of said rosslng tool.

support, and fluid-pressure means under manual control for moving said rotating cutter toward and away from said 10g.

14. In a log barking machine in combination, a supporting bed for the log, bumpers mounted on said log-bed arranged to move transversely thereon, a rotatable rossing tool and. an adjustable supporting frame therefor holding said rossing tool opposite to said bumpers and ar'anged so that the line of thrust of said tool on the log passes between the points of support of the log on said bed and said bumpers, means for moving said log past said rossing tool, said rossing tool

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