US544158A - Edger - Google Patents

Description

` 3 Sheets-Sheet 2.

(No Model.) l J. COX.

EDGER.

l Patented Aug. 6,1895.

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:1i l l E ATTORNEYS.

` W/TNEISSES @Af MM British Columbia, Canada,

UNITED; STATES PATENT Ormes.

JOHN COX, OF VICTORIA, CANADA.

EDGER.

SPECIFICATION forming part of Letters Patent No. 544,158, dated August 6, 1895. Application led December 13,1894. Serial No. 531,689. (No model.) l

To L ZZ whom it may concern.:

Be it known that I, JOHN COX, of Victoria, have invented a new and Improved Edger, of which the fol fowing is a full, clear, and eXact description. -The invention relates to wood-working machinery; and its object is to provide a new Vand improved edger, which is simple and durable in construction, very effective in operation, and designed for properly cutting parallel edges on shingles, boards, and other articles.

The invention consists of shifting devices actuated by the forwardly-moving article to be edged to set the saws transversely on their spindle according to the width of the article. The invention also consists of certain parts and details and combinations of the same, as

willbehereinafterdescribed,and then pointed out in the claims.

Reference is to be had to the accompanying drawings, forming a part of this specification, in which similar letters of reference indicate corresponding parts in all the figures.

Figure 1 is a side elevation of the improvement. Fig. 2 is a plan view of the same. Fig. 3 is a transverse section of the same on the broken line of Fig. l looking in the direction of the arrows 3 3, and Fig. 4 is a like view of the same on the broken line of Fig. l looking forward in the direction of the arrows 4 4:.

The improved machine is provided with a suitably-constructed frame A supporting a table B, over which passes an endless carrierbelt C having transverse ribs C for conveniently moving the article to be edged forward over the table B. The endless carrierbelt C passes over pulleys D and D', arranged at the ends of the frame A and secured on shafts E and E', respectively, journaled in suitable bearings on the said main frame A.

The shingles or other articles to be acted on are fed onto the carriera-belt C near the rear end of the table B at the pulley D', the said belt carrying the article to two circular saws F and F', held transversely adjustable on a spindle Gr journaled in suitable bearings on the main frame A and provided at one outer end with a pulley G', overwhich passes a belt Gr2 connected with suitable machinery .for imparting a continuous rotary motion to pulley H, over which passes a belt H', also passing over a large pulley H2 secured on a transversely-extending shaft HS journaled in suitable bearings in the lower part of the frame A near the middle thereof, as plainly shown in the drawings.

On the shaft H3 is secured a small pulley H4 connected by a crossed belt H5 with a pulley H6 secured on the shaft E carrying the pulley D, so that the latter is rotated when the spindle G is set in motion. The rotary motion given to the pulley D causes a traveling of the belt C, so as to carry the article to be cut forward to the saws F to be edged by the latter. In order to shift the saws F laterally according to the width of the article to be edged the following tripping devices'are employed.

On the table B, on opposite sides of the belt C, are arranged the obliquely-extending arms I and I', pivoted at their rear ends at I2 on top of the table B. Parallel to the arms I and I' are arranged the arms J and springs being arranged near the front ends of the arms I to engage the other arms near the middle, as will be readily understood by reference to Fig. 2. The rear ends of the arms J and J' are pivotedat J2 on top of the table B in front of the pivots I2 for the arms I and I'. The ends of the sets of arms I J and I'J' are suitable distances apart, so as to conveniently guide and hold the shingle or other article in theproper position on the belt C. (See dotted lines, Fig. 2.)

The front or free ends of the arms J and J' are pivotally connected at their outer faces bythe links L and L', respectively, with the spring-arms N and N', respectively, secured on shafts O ,andl O', respectively, arranged longitudinally above the tablerB and jourframe A. The shafts O and O' are spring pressed, and for this purpose the said shafts are provided with outwardly-extendingarms O2 and O3, respectively, connected with coilsprings O4 and O5, respectively, helden bolts attached to the main frame A.- (See Fig. 3.)

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On the shafts O and O are also secured the upwardly-extending ratchet-sectors N2 and N3, respectively, adapted to be engaged by pawls N4 and N5, respectively, fulcrumed on a bracket on the frame A, and having their inner ends engaged by notches of a verticallysliding bar P, resting with its lower end on a tripping-lever P', arranged over the belt C at the front ends of the arms J and J.' (See Figs. 1 and 2.) The pivot P2 of the lever P' extends transversely over the table B and is `iournaled in suitable bearings attached to the sides of the table, as shown.

On the frontend of the trippiug-lever Pis arranged a downwardly-extending and forwardly-curved foot P3, normally resting on the belt C, and adapted to be lifted by the shingle or other article carried forward by the belt. O and O' (see Figs. 1 and 4) are secured the downwardly-extending shifting-forks Q and Q', engaging the hubs of the saws F and F', respectively, so as to shift the latter transversely on the spindle G, according to the movement given to the shafts O and O' to set the saws according to the width of the article to be edged.

Between the saws F and the tripping-lever P is arranged a tripping-arm R held normally in a vertical position directly above the belt C, the said arm projecting downwardly from a transversely-extending shaft R' journaled at its ends in suitable bearings attached to thev main frame A. The outer ends of the shaft R support downwardly-extending arms R2, pivotally connected by links R3 with a second set of arms R4 depending from a transve'rselyextending shaft R5, arranged parallel to the shaft R', and also supported in bearings of the main frame A. From this shaft R5 extends forwardly and downwardly a third tripping-arm R, reaching with its front end beyond the saws F, the free end of the said arm being provided with aforwardly and downwardly curved foot R7 similar to the foot P3, and also resting normally on the belt C to be engaged by the forwardly-moving shingle or other article after the same has been edged by the saws.

rlhe arms R4 support, below the table B, a transversely-extending notched bar S, (see Fig. 2,) the said bar being adapted to be engaged by forwardly-projecting pins T and T' secured to the collars of the saws F and F respectively. Thus, when aforwardly-swinging motion is given to the tripping-arm R by the shingle or other article carried on the belt C, then a like forwardly-swinging motion is imparted to the arms R2 and R4, so that the notched bar S is moved in contact with the locking-pins T and 'l" to securely lock the saws F and F' in position to prevent transverse movement or shifting of the same on their spindle G, without, however, preventing their rotary movement.

In order to return the tripping-arms R and R6 and the arms R2 and R4 and notched bar S,

On the forward ends of the shafts I connect the arms R2 with rearwardly-ex-V tending ropes U passing over pulleys U', held on the frame A, the downwardly-extending parts of the ropes supporting weights U2, so that when the foot R7 trips off the rear end of the forwardly-moving shingle then the weight U2 will cause a return movement of the several parts to move the notched bar S ont of engagement with the pins T and T.

The operation is as follows: The shingle or other article passing onto the traveling belt C at the rear end of the table B is moved forward by the said belt as one of the ribs or cleats C' engages the rear edge of the shingle, as shown in dotted lines in Fig. 2. The shingle in its forward movement over the table B comes in contact with the arms I I' and also with the free ends of the arms J J', so that the latter are swung outward `or inward according to the Width of tho Ishingle, whereby a transverse movement 1s given to the links L L to impart a swinging motion to the arms N N', so as to rock the j shafts O O', thus causing a lateral shifting of lthe saws F and F' on the spindle G to move the said saws a distance apart corresponding lto the smallest width of the shingle carried` by the bolt C. As soon as the shingle passes 1under the first tripping-foot P3 of the trip- .3 ping-lever P', then the latter swings upward and thus imparts an upwardly-sliding movement to the bar P, so that the pawls N4 and `N5 engage the sector-ratchets N2 and N3 to lock the latter in place to prevent an outward sliding of the saws F and F', as a rocking of the shafts O and O' to accomplish this movement is entirely prevented. Thepawls N4 and iN5, however, permit the ratchets N2 N3 to move outward, to cause an inward movement of the saws F and F', respectively, whenever a portion of the shingle of less width than the one first engaged by the arms I I' and .I J' comes in contact with the said arms. In this manner the saws will be adj usted to a distance corresponding to the narrowest portion of the shingle. In case a projection or other prominence is in an edge of the shingle, then the spring-pressed arms O2 and O3 will yield suiliciently to permit the shafts O and O to rock outwardly, without affecting, however, the position of the saws. The shingle in its further forward movement engages the tripping-arm R, whereby movement is given to the notched bar S, as previously described, to engage the pinsT to prevent shifting of the saws outward or inward. Thus, bythe time the shingle passes to the saws, thelatter are in the proper position to admit the edges of the shingle, so as to cut the same parallel and to a size corrresponding to the narrowest width of the shingle. When the shingle has R7 finally been cut by the saws and left the foot of the last tripping-arm R, then the weights U2 unlock the saws F to permit shifting of the same according to the width of the next following shingle carried forward by the belt.

It is understood that as soon as the shingle IIO IZJ

has left the foot P3 of the first tripping-lever P the lever P swings downward to permit dropping of the bar P, which disengages the pawls N4 and N 5 from the ratchets N2 and N3 to permit rocking of the shafts O and O in either direction. i

It will be understood that the saws F F are located far enough in the rear of the saw-adjusting mechanism-to wit, the arms II J J- to allow the material to be operated upon to pass completely beyond the said arms before the saws begin to operate upon the material.

Having thus fully described my. invention, I claim as new and desire to secure by Letters Patent- 1. An edger comprising a carrier belt for moving the article forward to the saws, and shifting devices actuated by the forwardlymoving article to set the saws transversely 'on their spindle according to the width of the article to be cut, substantially as shown and described. A

2. An ed ger comprising a revoluble spindle, saws mounted to be shifted on the said spindle and revolving with the same, and shifting devices adapted to be actuated by the forwardly-moving article to be edged, the said devices being connected with the said 'saws to shift the latter transversely on their spindle, substantially as shown and described.

3. An edger comprising an endless feed belt for carrying the articles to be edged, forward, a spindle mounted to revolve, saws mounted to turn with the said spindle and tted to slide transversely thereon, tripping devices adapted to be actuated by the article carried on the said belt, the said tripping devices being connected with the said saws to shift the latter transversely on their spindle, substan-A 4. A11 edger comprising an endless feed belt for carrying the articles to be edged, forward, a spindle mounted to revolve, saws mounted to turn with the said spindle and tted to slide transversely thereon, tripping devices adapted to be actuated by the article carried on the said belt, the said tripping devices being connected with the said saws to shift the latter transversely on their spindle, and means, substantiallyas described, for returning the said tripping devices to their normal position after the article has passed the said tripping devices, as set forth.

5. An edger comprising a carrier for moving the article forward to the edging tools, shifting devices actuated by the forwardlymoving article to adjust the said tools transversely corresponding to the width of the article and a locking device actuated by the moving article, for preventing outward movement of the edging tools, yet allowing inward movement thereof, substantially as described.

6. An edger comprising a carrier for moving the article forward to the edging tools, shifting devices actuated by the forwardlymoving article to adjust the said tools transversely corresponding to the width of the article, a locking device actuated by the moving article, for preventing outward movement of the edging tools, yet allowing inward move.

ment thereof, and another locking device actuated by the moving article after the first named locking device, for holding the edging tools against both inward and outward movement, substantially as described.

JOHN COX. iVitnesses:

J. S'r. CLAIR BLACKETT, JOHN MILLS.

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