US431483A - Gang edger - Google Patents

Description

4 Sheets-'Sheet 1. A. E. ROE. GANG EDGER..

(No Model.)

Patented July 1, 1 896).

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' 4 Sheets-Sheet 2. A. E. ROE.

GANG EDGER.

(No Model.)

No. 431,483. PatentedJuly 1, 1890.

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(No Model.)

Patented July 1, 1890.

1 (No Model.) 4 Sheets-Sheet 4.

A. E. ROE.

GANG EDGER. No. 431,483. Patented July 1,1890.

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UNITED STATES PATENT OFFICE.

. ALPI-IEUS E. ROE, OF SAN FRANCISCO, CALIFORNIA, ASSIGNOR TO THE VULCAN IRON IVORKS, OF SAME PLACE.

GANG-EDGER.

SPECIFICATION forming part of Letters Patent No. 431,483, dated July 1, 1890*. Application fi November 4,1889. Serial No. 329,234. (No model.)

To all whom it may concern:

Be it known that I, ALPHEUs E. ROE, a citizen of the United States, residing in the city and county of San Francisco, State of California, have invented an Improvement in Gang- Edgers; and I hereby declare the following to be a full, clear, and exact description of the same.

My invention relates to certain improvements in the construction of gang-edgers or scantling-machines; and it consists in certain details of construction, which will be more fully explained by reference to the accompanying drawings, in which Figure 1 is an end view showing the gearing and connections for raising and lowering the feed-rolls and the mechanism for changing the saws. Fig. 2 is a plan view of a portion showing the saw-adjusting mechanism. Fig. 3 is an end view showing the means for driving the feed-rolls. Fig. 4c is a side view.

A-is the frame of the machine.

B is the saw-arbor, journaled in boxes and extending centrally from end to end of the frame, having suitable driving-pulleys upon the end of the arbor.

C are the saws, which are fixed in collars, these collars being fitted to slide upon feathers or keys longitudinally upon the arbor, so as to be moved nearer to or farther from each other, and by this adjustment the width of the material to be cut by the gang of saws is determined. In order to move these saws, each of the collars has a groove or channel cut around it, into which the curved end of the lever-armE is adapted to fit. This arm is fulcrumed upon a sliding yoke or carriage E, which is adapted to travel upon a guide or way E parallel with the 'saw-arbor, and when it is moved one way or the other it acts through the arm to move the saw with it. The lever-arms E are pivoted to the carriage E, as shown at F, so that it it is desired to remove the saws from the arbor these arms may be turned about their pivots, and thus disengaged from the collars of the saws and turned up out of the way, so that the saws can he slipped off of the arbor. A handle G is fulcrumed to the yoke E, and the inner end of this handle forms a short arm, which is adapted to engage with teeth or notches H in the figure-bar I, and thus hold the adj usting-arms E and the saws at any desired position.

The figures on the figure-bar I represent certain fractions of lumber measurement, and the teeth or notches 11, corresponding with these figures, represent the fractional value of each notch. The weight of the outer end of the handle is sufficient to keep the inner end engaged with its notch; but when the handle is lifted the inner end'is disengaged, and the whole device may be pushed to one side or the other, thus moving the saw upon its arbor.

The guide or plate E by which the carriages or yokes E are directed, has four grooves e, in each of which one of the slides e of the yokes is fitted to travel. These grooves or channels are made in the lower face of the plate, so as to prevent sawdust from accumulating in them, and thus preventing the free movement of the slides. These slides are of considerable length, (ten or twelve inches,) so as to move easily, and not bind when the yokes and saws are moved from side to side, and the first four are arranged to follow each other successively in the grooves, after which the fifth and sixth are placed in the first and second grooves again, as they will be so far from the first and second as not to interfere with them, and thus these four guides serve for the adjustment of the Whole six saws, as shown in Fig. 2.

J and K are the rolls through which the lumber passes, and by which it is fed to the saws. The upper rolls have each end journaled in boxes j, which move up and down in suitable guides j upon the end posts of the frame.

L L are jointed connecting-rods having the upper ends hinged or pivoted at the upper corners of the frame at Z, and the lower ends hinged or pivoted to the upper roll-boxesj, the centers of the rods being hinged togetherat Z. There are two sets of these rods, one upon each side of the machine, and they are connected together by two parallel rods N, which extend along the sides of the frame of the machine and unite with the connectingrods at their central meeting-point or kneejoint Z, thus connecting the pair of each side together. The opposite rods L at each end are also connected by transverse rods N.

O is a shaft extendinglongitudinally of the frame of the machine parallel with the sawarbor and above it, and P is a second shaft parallel with the shaft 0.

Q Q are spur gears or segments mounted upon the shaftP so asto engage with pinions R, which are mounted upon the shaft 0.

S S are crank-links having one end pivoted to the meeting joints or knees of the suspending rods L, while the opposite end of each is connected with the pin q,near the periphery of the spur gear or segment Q, which is mounted upon the shaft P. Upon the end of the shaft 0 is a flanged pulley T, which receives motion by means of a belt a from a flanged pulley U, mounted upon the end of one of the lower feed-roll shafts.

V is a tightener-pulley journaled upon the swinging frame or pendulum W, so that when the tightener-pulley is pressed against the belt which connects the flanged pulleys the shaft 0 will be caused to rotate in one direction, and by means of the pinions upon this shaft, which engage with the spur gears or segments on the shaft P, these gears or segments will be turned, and through the 0011- necting-links S S, which unite them with the connected series of suspending rods L of the upper roll journal-boxes, the movement of the spur-gears will be communicated to these rods and they will be pushed out to one side, thus acting to raise the upper feed-rolls in proportion to the distance thatthey are pressed to one side. The swinging frame WV of the tightener-pulley V is connected with a rockshaft 10, which extends along the front of the machine, and said shaft is provided with a continuous handle-bar 10, so that no matter in what position the operator may be standing he can grasp the handle-bar and operate the tightener-pulley.

The feed-rolls are caused to rotate in unison,

' whatever may be their position, by means of the gears a, b b, and c. The gear a is fixed upon the end of the lower feed-roll shaft, and

a bell-crank or right-angled arm cl has one end connected with this shaft, so as to move about it. In the angle and at the opposite end of this arm are fulcrumed gears 19 b, one of which engages with the gear a, and the other with the gear 0, which is fixed to the upper feedroll shaft. A single link d connects the upper end of the right-angled lever-arm dwith the upper feed-roll, so that and by this connection it will be seen that the upper feedrolls may be moved up or down by the mechanism previously described without disengaging the gears, the angular levers (Z and links d holding them in proper relation with each other, while allowing the feed-rolls to move up or down.

X is a brake-lever, which is connected with and operates a brake as, acting on an inner flanged face of pulley T on the end of shaft 0. The lower end of this lever engages a rack 00, by which it is held in the position to which it may be moved. Now after the feed-rolls have been raised to the required position the brake so may be applied and set fixedly by the lever X engaging its rack 50', and thereby so braking pulley T that it will hold the rolls inthe position'required.

Y is the drive-pulley on the saw-arbor, and 11 is a smaller pulley on the arbor. From pulley y extends a belt 3 to a pulley g on a shaft Y above. Upon this same shaft is a pulley On one side of this pulley is an idler-pulley 1 and on the other side is a tightener-pulley g carried in the end of a weighted lever 1 On the end of the lower feed-rollshaft is a pulley 7c, and on the end of the shaft of the opposite lower feed-roll is a pulley An endless belt Z passes under pulley if, over tightener-pulleyy down under pulley 70 across to pulley 7c, and up to and over idler-pulley 3 By this arrangement the feed-rolls are driven in a direction opposite to the direction of rotation of the saws and without the use of a crossed belt.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is v 1'. In a gang-edger, the combination of a series of saws adapted to be moved upon a sawarbor, the lever-arms having curved ends removably connected with the saw-collars, the sliding yokes to which the lever-arms are pivotally secured, the figure-bar, and the guideplate E having a grooved under surface, said yokes being provided with slides e, engaging the grooves of the guide-plate and havinghandle portions whoseinner ends engage the figure-bar, substantially as herein described.

2. In a gang-edger, the combination of aseries of saws adapted to be moved upon a sawarbor, the lever-arms having curved ends removably connected with the saw-collars, the figure-bar, the sliding yoke pivotally secured to the lever-arms and having gravitating handles whose inner ends engage the figure-bar, the longitudinally-grooved guide-plate, the guide E and the slides upon the yoke engaging the guides, substantially as described.

3. In a gang-edger, the vertically-movable upper feed-rolls, in combination with the means for moving them vertically, consisting of the jointed rods pivoted at their lower ends to the roll-shaft connections and at their up-- per ends to the main frame, a rotary shaft in the main frame, and crank-links connecting said shaft with the jointed rods, whereby the latter are bent to raise and lower the rolls, substantially as herein described.

I 4. In a gang-edger, the vertically-movable upper feed-rolls, in combination with the means for moving them vertically, consisting of the jointed rods pivoted at their lower ends to the roll-shaft connections and at their upper ends to the main frame, a rotary shaft in the main frame, gears on said shaft, crank-links connected with the gears and with the j ointed rods, whereby the latter are bent, and a second rotary shaftin the frame having pinions meshing with the gears of the first shaft, substantially as herein described.

5. In a gang-edger, the vertically-movable upper feed-rolls, in combination with the jointed suspending rodshavingthelower ends connected with the upper feed-roll boxes and the upper ends pivoted to the upper part of the frame, connecting rods between the jointed rods, whereby the latter operate in unison, a rotary shaft in the main frame having gears, crank-links connecting said gears with the jointed rods, whereby the latter are bent, a second rotary shaft with pinions engaging the gears,'and a pulley on the second shaft, whereby it may be rotated, substantially as herein described.

6. In a gang-edger, the vertically-movable upper feed-rolls, in combination with the shaft O, intervening connections by which the rotation of the shaft is directed to vertically move the upper feed-rolls, the pulleyT on the end of shaft 0 and a belt for operating it, the flanged face of said pulley, the brake on said face, the lever for operating the brake, and the rack for holding the lever, whereby the rolls may be held in desired position, substantially as herein described.

7. In a gang-edger, the saw-arbor and the lower feed-rolls, in combination with the mechanism for driving the feed-rolls in a direction opposite to the direction of rotation of the saw-arbor, consisting of the shaft Y and pulleys and belt by which said shaft is driven from the saw-arbor, the pulley g on the shaft Y, the idler and tightener pulleys on each side, the pulleys 70 k on the shafts of the lower feed-rolls, and the endless belt Z, all arranged and adapted to operate substantially as herein described.

8. In a gang-edger, the vertically-movable upper feed-rolls, the belt, pulleys, and intervening power-transmitting mechanism comprising the jointed rods, the rotary'shaft on the main frame, and crank-links connecting the shaft with the jointed rods for vertically moving said rolls, in combination with the tightener-pulley for throwing the belt into and out of operation, the swinging frame carrying said pulley, the rock-shaft, on one end of which the frame is carried, and the handlebar of the shaft extending along the front of the machine, substantially as herein described.

In witness whereof I have hereunto set my hand.

ALPHEUS E. ROE.

\Vitnesses:

COLIN McKELLAR, D. McKELLAR.

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