US885874A - Wood-shaving machine. - Google Patents

Description

lPATENTED APR. 28, 1908.

H. W. SELLE. WOOD SHAVING MACHINE.

APPLIUATION FILED DEO. 9, 1907.

` 2 SHEETS-SHEET 1.

IIIIIIIIHHIII Il'lllllllllillllm- ENnRRIs Pansen., wasmrmmm. n.1:

' PATENTED APR. 28, 1908.V

H. W. SELLE. WOOD HAVINC-rv MACHINE.

APPLICATION FILED DEO. 9, 1907.,

2 SHEETS-SHEET v2.

"cron, D. c.

HARRY W. SELLE, OF CHICAGO, ILLINOIS.

WOOD-SHAVING MACHINE.

Specification of Letters Patent.

Patented Apn'i e8; 1908.

Application filed December 9, 1907. Serial No. 405,675.

. thereof.

The object of my `invention is to provide simple, economical and effective machines for cutting eXcelsior or shavings from wood blocks for commercial usage, the construction and arrangement of the machine being such that, the wood block is fed, by gravity,

to a rotary drum carrying knives, so posi-v tioned with relation to the block or log as to out shavings from the log parallel to the grain thereof, the log being slowly rotated by a positive drive.

The invention therefore consists in certain peculiarities of construction and combination of parts as hereinafter fully set forth with reference to the accompanying drawin s and subsequently claimed.

n the drawings: Figure 1 represents a side elevation of a machine embodying the features of my invention, parts bein broken away and parts in section to better lllustrate the details; Fig. 2, a front view of the machine, and Fig. 3, a plan view of a portion of the same.

Referring by numerals to the drawings, 1

. indicates standards connected by crossbraces 2, constituting a frame havin bearings for a driven shaft 3, to which s aft is secured a skeleton drum 4 that carries a series of knives 5 about its periphery. The drum com rises a series of heads 6 connected by integra L-shaped strips 7 which are lfaced to receive the knives 5, said knives consisting of flat straight blades of the same length as the drum and having slots therein for the reception of set bolts 8, the bolts being in threaded-engagement with apertures in the faces of the strips. The faces of the drumstri s on which the knives rest, are tangential y disposed with relation to the drum-axis, all of the heads being out' away to permit seating of the knives so that their cuttingedges may be set beyond the circumferential diameters of said heads if desired. By this construction it will be seen that the heads serve as supports on which the log or block rests, acting also to gage the depth of cut of the knives, said log bein suspended above the drum in a floating yo e 9, as follows] The frame-standards 1 are provided with bearings for a shaft 10, upon which shaft are loosely mounted arms 11'of the yoke, the free ends of the arms terminating with apertured hubs 12 and 13. The apertured hub 12 is adapted to receive a spindle 14 that is provided with a tapered bore for the reception of a corresponding tapered shank of a spur 15, which spur constitutes one member of a log-chuck. The opposite member comprises a threaded stem 16 which is tted into the aperture of the hub 13, said aperture being threaded for this purpose and also split so that when the stem is adjusted by means of a hand-wheel 17, it is .held in such adjusted position by a clamp-screw 18 that is in threaded connection withthe split hub.

One end of the log is forced a ainst the spur 15, the opposite end being he d in position by a coneoint 19 of the stem, upon which point the o is revolved by the spindle 14. The spind e 14 is slowly rotated by a pulley 20 fast on the aforesaid spindle and in belt-connection With a smaller pulley 21 fast on the shaft 10. The knife-drum 4 is driven at a high speed by a pulley 22 from any suitable source of power, and motion is `transmitted to the log, which preferably rotates in the same direction as the drum, by a system of back-gearing, from the drum-shaft 3. This is accomplished through a spur-pinion 23 fast on the drum-shaft and in mesh With a spur-Wheel 24, secured to a countershaft 25, the latter being mounted in bearings of the standards. The counter-shaft Aalso carries a small pulley 26, that is in beltconnection with a large pulley 27 secured to the shaft 10 as shown.

The yoke as will be seen from the drawings, is horizontally disposed, and when a log or block is in position thereon, its axis is approximately parallel with and directly over the drum-axis, hence when the machine is in operation it will be readil understood that a longitudinal shaving wil be cut from the log in the form of straight strips, as each knife or blade passes the underside of said log, the latter being sustained in its relative position with regards to the cutting-edges of the knives by the drum heads. These shavings consequently have the grain of the wood runnin lengthwise thereof and therefore will not chip or break when subjected to other operations, such as crimping or the like, a result which is very desirable, especially as the shavings may be cut to the thinnest possible degree, and having great toughness they will more readily assume a curl without breaking. This result is not attainable in machines wherein a spiral cut shaving is made, for the reason that such shavings must necessarily be cut so that the grain of the wood therein is diagonally dis osed with relation to the Width, and while am aware of such machines, they do not produce the results which I desire to attain and do attain by the arrangement of axially parallel knifedrum and log. Another advantage of the machine as herein described, is that the relative speed of rotation of the knife-drum and log may be varied by changing the drivingpulley of log for one of a different diameter whereby the width of the shaving is regulated to a greater or less degree. hen said log or block has been reduced to its minimum diameter for practical purposes the ioatingyoke 9 will be checked in its downward course by a stop-pin 29, which pin projects in the path ofone of the yoke-arms, the pin being fast to the adjacent standard l of the frame.

While I have shown and described the log or block as being driven by a series of belts from the counter-shaft 25, it is obvious that equivalent gearing may be substituted without departing from the spirit of my invention, and in some instances in place of rotating the log in the same direction as the drumknives it may be reversed.

I claim:

1. In a wood-shaving machine, a horizontally disposed rotary drum, knives carried by the drum, having cutting-edges parallel to said drum aXis, a horizontally disposed swinging yoke above the aforesaid drum, and a revoluble log-chuckmg mechanism carried by the yoke, the axis of the log-chuckmg mechanism being parallel to the drum-axis.

2. In a wood-shaving machine, a frame, a drive-shaft mounted therein, a horizontally disposed rotatory drum secured to the driveshaft, knives carried by the drum, having cutting-edges parallel to the drum-axis, a. shaft carried by said frame, a iloating yoke pivotally mounted about the shaft, a revoluble log-chucking mechanism carried by the yoke at its free end, the axis of the log-chucking mechanism being parallel to said drumaxis, driving means for the shaft in connection with the driven shaft on which is secured the drum, and driving means for the chucking-mechanism in connection with the irst named shaft.

' 3. In a wood-shaving machine, a horizontally disposed drum comprising a series of heads connected by strips, adjustable knife- Vblades, having cutting-edges parallel to the axis of the drum secured to the strips, a bori- Zontally disposed swinging yoke above the drum, revoluble log-c nicking mechanism carried by the yoke, the log-chucking mechanism being parallel to said drum-axis, and driving-means connecting the log-chucking mechanism and drum, whereby said logchuckin r mechanism is rotated at a reduced speed relative to that of the drum.

In testimony that I claim the foregoing .l have hereunto set my hand at Chicago in the county of Cook and State of Illinois in the presence of two witnesses.

HARRY WV. SELLE.

Witnesses J. V. PIAZZA, I. C. KREYSCHER.

Images