US1440042A - Means for barking timber - Google Patents

Description

Dec. 26, 1922. 1,440,042.

E. B. WHALLEY.

MEANS FOR BARKING TIMBER.

FILED JUNE 24. 1921. 2 SHEETS-SHEET 1.

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apparatus for barking by my Patented Dec. 26, 1922.

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EDMUND BEssELLWHALLEY, on SHEFFIELD, ENGLA D.

MEANS non BARKING rnunnn.

Application filed June 24. 1921. .Serial No. 480,137.

To all whom it may concern:

Be it known that I, EDMUND BESSELL WHALLEY, of 3 Park Crescent, Sheffield, in the county of York, England, a subjectof H the King of Great Britain andIreland,have invented a certain new and useful Means for Barking Timber, of which the following is a specification.

' This invention relates to the barking of timber and has for its object to improve on the present methods of performing that operation which are often somewhat lengthy and are wasteful in timber and to that end this invention consists in a novel method by" chine being given longitudinal movement with or without relative rotarymovement.

According to oneform of this invention, when barking a log, one end is first prepared, if necessary, by removing a ring of bark. This is sometimes done when the ree is felled or before it is brought to the barking machine. The end of the log is then inserted endwise into a machine which has a series of radially disposed barking tools which collectively cover the whole circumference of the log, which latter is then given an endwise'and if necessary rotary feeding movement through the ring or rings of tools, or the machine may be moved longitudinally instead of thelog. Each tool is'capable of yielding in a radial direction so as to adapt itself to irregularities in the contour of the log and to obviate digginginto thewood oft the log and so wasting valuable timber. By adjusting the tools or employing suitable ones,

the surface of the wood can be removed if desired.

I will now describe one convenient form of improved method, but it should be understood that I do not confine myself to the particular construction so described.

Fig. 1, is an elevation of one form' of device for removing a ring of bark from the end of a log.

Fig. 2, is a side elevationof one form of machine forbarking alog.

Fig. 3, :is an end elevation of same.

Fig. 4., is an end view of one ring of'tools showing a rotary annular device for drawing the tools outwards simultaneously- Fig. 5 is an elevation of one form of tool adapted for use with apparatus made in accordance with this invention; and

Fig. 6 is a plan view thereof.

A log to be barkedis placed upon a log spinner of the usual character, i. e. two rollers a, a, mounted on a sultable frame and adapted to be rotated in the same direction, the log 6, resting between them and in consequence rotated in the opposite direction. An end peeling device is then applied to the log I), which device consists of a pivoted lever c, (hereinafterfreferred to as the mainlever) on which. are freely mounted two wheels (Z, cl, arrangedin tandem fashion. These ,wheels are causedto bear upon the revolve ing log 6. Pivotedto the main leverc, is a second lever'e, which is provided with a knife edge wheel f, which runs in advance of peelingchisel 9, also .securedto the second lever. The'knife edge wheel cuts the bark circumferentially and the chisel pares off a strip equal to its own width. If the end of alog should be free from barkit. will of course be obvious that this preliminary operation is entirely unnecessary. i When the end of the log has been so prepared it is ready for the barking machine and this consists of suitable standards, bed

i and framing 7L, supporting an annular headstock, or headstocks j, j, infiwhich are arranged l'flCllELllj (QllSjJOSGCl rings of chisels or paring tools 7c, 70, .70. These r ngs of tools are preferably arranged in seriesand each tool engages different portions of the circumference of the log, so that collectively they cover the entire circumference. Each chisel or tool is preferably mounted in a guide m, as shown in Fig. hand is pressed up to its work by a coiled spring 7, either in compression as 1 shown or in tension, or by any other suitable, device. With such an arrangement each chisel is capable of yielding and so adapts itself to variations in the contour of the log.

The logs may be supported on rollers 0, p,

and given a longitudinal and if necessary,

rotary'motionby any suitablemeans and at any desired speed. These rollers may if de sired be supported 011 springs so as to yield and thus allow of a more or'less smooth horizontal movement.

In use the barked or reduced end of a log is first inserted into the machine, the tools bearing against the barked surface of the log, said logis given a longitudinal motion and the tools pare off the barklongitudinally.

a ()ne very convenient form of chisel or tool to employ is one of square section as shown in Figs.-5 and 6 and having four. cutting edges 70 ,70 76 26 (one on each face) so that when one edge becomes blunted, another can be brought into operation by simply turning the tool. The tools may .be disposed at right angles to the longitudinal axis. of the log or at any suitable anglev thereto and have a square end face is tobear'on the surface of the log without cutting the wood of the log. 1

Provision is made for drawing the tools outwardly simultaneously when desired and this may be effected by a rotary annular device consisting of a plate 9 provided with a series of cam faces 1", 1", to engage pins 8, s, or projections on the outer. ends of the chisels ortools and rollers t, t, may be provided on said pins. This plate may be operated by levers 1v, 4), against, the "action of aspring a, so that when said plate is given a turn the chisels. are simultaneously drawn outward by the action of the rollers t, t, climbing the cam faces 1', r. 'Itwill thus be seen that various sized logs (Within reasonable limits) maybe barked in' onemachine.

What I claim and desireto secure by Letters Patent is :I i

1. In a machine for barking timber, tools mounted radiallywith respect to a log, means independent of the log for simultaneously moving said tools towards and away from the longitudinal axis of the machine, said toolsbeing provided with a plurality of cutting edges and an end surface adapted to bear and ride on the surface of the log without cutting into said surfaceof the log,

and means for rotating the. tools on their axes to bring a new cutting edge into operation. I

' 2'. In amachine for barking timber, tools mounted radially withrespect to the log, and means independent of the log for moving said tools independently of one another and s'imultaneously towards and away from the longitudinal axis of the machine.

3. In a machine for barking timber, tools mounted radially with respect .to the log, means independent of the log for moving said tools radially independently of one another'and simultaneously towards and away from the longitudinal axis of the machine, said tools being provided with a plurality .ofhcutting edges and an end surface adapted to bear and ride on the surface of the log without cutting into said surface. of the log, and means for rotating the tools on their axesto bring a new cutting edge into, opera- I tion. 7

4:. In a machine for barking timber, tools mounted radially with respect to the log, means independent ofthe log-for simultaneously moving said tools radially towards and awayfrom the longitudinal axis of the machine, said means for moving the tools comprising a plate and a plurality of inclined surfaces on the plate adapted to engage rollers mounted on the tool shafts.

5. In. a machine for barking timber, tools mounted .radially with respect to'the lo means independent of the log for simultaneously moving said tools radially towards and away from the'longitudinal aXisof the machine, said toolsbeing provided with a plurality of cuttingedges and an end surface adapted to bear and ride on the surface of the log without cutting into said surface of the log, and means, for rotating the tools on their axes to bring a newcutting edge into operation, saidmeansfor moving the tools simultaneously comprising a plate and a plurality of inclined surfaces on said plate adapted to engage rollers mounted on the tool shafts. V

6. A machine for barking timber comprising a bed, an annular headstock on the bed,

tools radially disposed on the headstock, vmeans for permitting the tools to yield to the va'riationsof the contour of a log, means for moving the log longitudinally, means tion.-

In testimony whereof I have signed my name to this specification.

EDMUND BESSELL WHALLEY;

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