US2520421A

US2520421A - Post peeling machine having rotatable chain-carrying drum

Info

Publication number: US2520421A
Application number: US695858A
Authority: US
Inventors: Mathewson Clarke; Carter Emory
Original assignee: Individual
Current assignee: Individual
Priority date: 1946-09-10
Filing date: 1946-09-10
Publication date: 1950-08-29
Anticipated expiration: 1967-08-29

Description

g- 1950 c. MATHEWSON ETAL 2,520,421

POST FEELING MACHINE HAVING ROTATABLE CHAIN-CARRYING DRUM Filed Sept. 10, 1946 4 Sheets-Sheet 1 3 4 gmwrms 3], 0Za7 [\[a Wwwso m 29, 1950 c. MATHEWSON EIAL POST FEELING MACHINE HAVING ROTATABLE CHAIN-CARRYING DRUM 4 Sheets-Sheet 3 Filed Sept. 10, 1946 awn/Win 5 C'Zarire fl/afizewson Laurie? 1950 c MATHEWSON ETAL 2,520,421

POST FEELING MACHINE HAVING ROTATABLE CHAIN-CARRYING DRUM UZaV/Z e Mikewsan 50 Tier Patented Aug. 29, 1950 ros'r rename insomnia HAVING some [rBLE CHAIN-GARRYING DRUM Clarke Itlathetvson and Emory Carter, Lake City, Fla; said Mathewson assignor to said Carter Application September 10, 1946, Serial No. 695,858

1 oiaim. (o1. 144-208) flhis'invention relates to a bark peeling means for logs, v

Anbbject of this invention is to provide an improved bark peeling means which includes a rotary drum provided with a plurality of chains which under centrifugal force are adapted to strike the bark on the log to thereby chip and remove the bark as the log is moved relative to the drum.

Another object of this invention is to provide a single portable bark peeling machine which includes a frame, a rotary chain carrying drum, and a powermember on the frame.

further object of this invention is to provide in a device of this kind, means for movably supporting the log duringthe peeling operation and for keeping the log substantially centered as it moves over the peeling drum.

With the above and other objects in view, our invention consists in the arrangement, combination and details of construction disclosed in the drawingsand specification, and then more particularly pointed out in the appended claim.

In the drawings:

Figure 1 is a detail side elevation of a bark peeling machine constructed according to an embodiment of this invention,

Figure 2 is an end elevational view of the machine as seen from the left of Figure 1, certain parts thereof being concealed and certain frame parts being omitted,

Figure 3 is a fragmentary sectional view taken ontne line 33 of Figure 1,

Figure 4 is a fragmentary sectional view taken on the line 4-4 of Figure 3,

Figure 5 is a fragmentary sectional view taken on the line 5-5 of Figure 1,

Figure 6 is a fragmentary transverse section of a modified form of bark peeling drum,

Figure 7 ma, longitudinal section through the drum shown in Figure 6,

\ Figure 8 is a fragmentary sectional view taken on th'elin'e 8--8 of Figure 6,

Figure Q is a plan view of another modification of this invention,

,"Figure is a sectional view taken on the line fo m fFigure 9. r U

Referring to the drawings and first to Figures 1 to 5 inclusiva the numeral I5 designates generally a frame structure which is formed of upright cornermembers I ficonnected together by horizontal connecting bars IT. The frame I5 at the upper end thereof has mounted on the upper horizontal bar I8 thereof aligned bearings I9. Thefbearings I9 have journaled therethrough a Shaft 10 which has apulley2 I on one end thereof.

2 The frame I5 includes an offset motor frame 22 on which a motor or power member 231s mounted. The power member 23 includes a drive shaft 24 having a pulley 25 mounted thereon, about which a belt 26 is trained. The belt 26 is also trained about the pulley 2|.

The shaft 20 has mounted thereon between the bearings I9, a bark peeling drum generally designated as 21. The drum 2'! includes a pair of spaced discs 28 which are carried by a tubular hub 28a which is keyed or otherwise firmly se cured to the shaft 2!]. The two spaced discs 28 have extending therebetween, a plurality of e1ongated chains 29. The opposite ends of the chains 29 are secured to the inner sides of the discs 28 by means of hook-shaped bolts 30 fixed relative to the discs 28 by nuts 3|. The chains 29 are tied together by an intermediate circumferential chain 32 so that the chains, under centrifugal force, will be held in a pair of curved portions for engagement with the bark of the log in order to break up the bark and to remove the same from the log.

The frame l5 also includes horizontal extensions 33 which extend from the rear ends 'of the upper bars 18. A log guiding roller 34 is carried by a shaft 35 journaled in bearings 36 which are carried by upstanding supports 3?. In order to provide for holding the log against lateral movement as the log is moved over the guiding rollers 34, I have provided a pair of divergently mounted guiding rollers 38 which are mounted on a pair of shafts 39 diverging upwardly from a supporting block 40.

The frame I5 has mounted on the upper end thereof a vertically disposed side plate 4| which is fixed to upstanding angle members 42 which are fixed relative to the frame I5. A rear plate 43 is fixed between a pair of upright angle members :32 at the rear of the frame I5, and the rear plate 43 is formed with a V-shaped opening 44 having a concave bottom edge 45 extending below the horizontal plane of the top of the roller 35. The protecting plate 4| provides means whereby the flying bark will be held away from the power member 23 during the peeling operation.

Referring now to Figures 6, 7, and 8, the numeral 4E designates generally a modified bark peeling drum which is adapted to be mounted on the shaft 26. The drum it includes a pair of spaced discs 4? carried by a tubular hub 68 which is keyed or otherwise fixed relative to the shaft 26. The tubular hub 58 has fixed thereon a plurality of spaced apart small diameter discs 49 formed with holes 55. The drum 3B is adapted to have a series of short length chains 51 rfixed to the small diameter discs 49. Each chain 5| has headed bolt 52 extending through the innermost link thereof, and the bolt 52 extends through the opening 50 and is secured by means of one or more nuts 53.

Referring now to Figures 9 and 10, there is disclosed a portable bark peeling machine which is designed for use with relatively large logs adapted to be placed on the surface of the ground, and the bark peeling machine moves thereover. The structure shown in Figures 9 and 10 includes a mobile frame 54 which is formed of a pair of parallel side frame bars 55 connected together by means of an intermediate connecting plate 56, and a rear bar 51 about which a spacer sleeve 58 engages. The spacer sleeve 58 also provides a handle by means of which the frame 54 may be moved lengthwise of the log.

The frame 54 also includes a pair of dwnward- 1y convergent frame bars 59 which provide a means for supporting stub spindles or axles 68 for wheels 6!. The frame 54 has rockably disposed between the forward end thereof a bark peeling frame structure generally designated as 62. The frame structure 62 includes a pair of side frame members 53 which have extending between the transverse median thereof a supporting shaft 54. The shaft 6 is journaled in bearings 55 which are carried by the side frame members 55 and the shaft 64 has fixed on one end thereof a pulley 55. A power member is mounted on the connecting plate as and has a pulley 68 mounted on the drive shaft 5% thereof.

A belt i9 is trained about the two

pulleys

56 and 68 so as to thereby rotate the shaft 5s. The shaft 54 has mounted thereon a bark peeling drum ll which is disposed between the side frame members 53. The drum H includes a pair of spaced discs '12 which are fixed to the shaft 64 in any suitable manner and an intermediate small diameter disc i3 is disposed centrally between the two discs "E2. A plurality of chains 14 are fixed at their outer ends to the outer disc 12 and are fixed at an intermediate point to the intermediate disc E3. The frame 62 has rotatably disposed therebetween a pair of rollers '15 carried by the roller shafts l6 journaled between the side members 63. The two rollers l5 are disposed on opposite sides of the peeling drum TI and each roller is formed of oppositely disposed cone-shaped portions Ti and 16. By providing the rollers i5 as herein disclosed, these rollers will serve as a centering means for centering the peeling drum H over the top of the log which is resting on the surface of the ground and over which the device is adapted to be moved.

In the use and operation of the device shown in F131... .5 1 to 4K inclusive, the log L is engaged with the horizontally disposed roller 34 and moved over this roller through the opening 44. The peeling drum 2? is adapted to be rotated by means of the power member 23 and preferably the drum 2'? rotates against the lengthwise movement of the log. As the drum 21 rotates, the imp-act chains 29 will strike the bark on the log and thereby break up this bark and cause same to be removed from the log. The centering rollers 38 will provide means whereby the log will be substantially central of the drum 2'? so that when the log is in contacting position with the peeling drum 2'! this log may be rotated about the horizontal axis to bring the entire circumference of the log into engagement with the peeling drum before the log is moved forwardly.

The machine shown in Figures 1 to 4 inclusive is designed particularly for peeling the bark from relatively small logs and the drum shown in Figures 6 to 8 inclusive may be substituted for the drum 21. Where the log is of relatively large size so that it cannot readily be handled by one man, the log is left on the surface of the ground and the peeling structure shown in Figures 9 and 10 is used for peeling the bark from the log. The wheels 6| are adapted to engage on opposite sides of the log and the frame 54 is moved over the log. The frame 54 may assume any desired inclination to the horizontal so that the frame 62 may be substantially horizontal when the rollers 15 engage the surface of the log. In other words, the frame 52 may assume any angular relation with respect to the frame 54, depending on the diameter of the log. The peeling drum H will peel the bark from the log in the same manner as the bark is peeled by means of the drum 21.

With a machine of this kind, the log will be effectively peeled of bark without injury to the surface of the log and the machine can be moved to the desired location for peeling of the bark from the log at such location. This machine will make it unnecessary to handle the log in the manner as heretofore handled where the log was shipped to the de-barking plant and then shipped to the desired location. With a machine of this kind, the bark is peeled from the log without making necessary the shipment of the unpeeled log to the de-barking location.

We do not mean to confine ourselves to the exact details of construction herein disclosed, but claim all variations falling within the purview of the appended claim.

What we claim is:

A bark peeling machine comprising a frame, a rotary peeling drum carried by said frame, said drum comprising end disc members and a plurality of chains loosely disposed between said disc members, a horizontal guiding roller rotatably carried by said frame, a pair of upwardly divergent rollers rotatably carried by saidframe, an upwardly projecting side shield carried by said frame, an upwardly projecting end shield carried by said frame, said end shield extending at right angles from said side shield and extending between said drum and rollers, and being formed with an opening through which the log is passed, and means for rotating said drum.

CLARKE MATHEWSON.

EMORY CARTER.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 481,841 Boul'gin Aug. 30, 1892 1,549,855 Cote Aug. 18, 1925 1,552,498 Noyes Sept. 8, 1925 1,670,725 Hummel May 22, 1928 1,953,194 Shariiey Apr. 3, .1934 2,005,799 Nicholson et 9.1. June 25, 1935 2,232,416 Taylor et al. Q Feb. 18, 1941 2,397,490 Kenney Apr. 2, 1946 2,400,725 l/Vitham May 21, 1946 2,415,601 Milward Feb. 11, 1947,

FOREIGN PATENTS Number Country Date 69,348 Sweden Sept. 22, 1928. 624,646 Germany Jan. 25, 1936'