US436255A - Excelsior-machine - Google Patents

Description

2 Sheets-Sheet 1.

(No Model.)

A. L. & G. D. MOORE.

BXGELSIOR MACHINE.

No. 436,255. Patented Sept. 9. 1890.

NVENTOR B y a. j

WITNESSE Q 4 A 77'0/YNE Vs (No Model.) 2 Sheets-Sheet 2.

A. L. & G. n. MOORE. EXCBLSIOR MAGHINE.

No. 436,255. Patented Sept. 9, 1890.

WITNESSES: INVENTOR: M r-. .Z.77(m

I l ATTORNEYS UNITED STATES PAT NT OFFICE.

AMBROSE L. MOORE AND GEORGE I). MOORE, OF NEW? ORLEANQ, LOUISIANA.

EXCELSIOR-MACHINEI SPECIFICATION forming part of Letters Patent No. 436,255, dated September 9, 1890.

Application filed February 20, 1890- Serial No. 341,181. (No model.)

To all whom it may concern:

Be it known that we, AMBROSE L. MOORE and GEORGE D. MOORE, of New Orleans, in the parish of Orleans and State of Louisiana, have inventeda new and Improved Excelsior- Machine, of which the following is a full, clear, and exact description.

The invention relates to wood-working machinery for manufacturing excelsior from blocks of wood.

The object of the invention is to provide a new and improved excelsior-machine, which is simple and durable in construction and very effective in operation, and cuts a series of shavings on both the forward and backward stroke of the knife-head.

The invention consists in certain parts and details and combinations of the same, as will be described hereinafter, 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 plan view of the improvement. 2 is a longitudinal sectional elevation of the same. Fig. 3 is an inverted plan View of the same. Fig. 4 is a side elevation of the shaft for changing one feed-roller. Fig. 5 is a side elevation of the feed-roller pin, and Fig. 6 is an enlarged sectional side elevation of the mechanism for imparting motion to the feed-rollers.

The improved excelsior-rnachine A is provided with a suitably-constructed frame B, in which is held to slide in suitable guideways a knife-head O, pivotally connected at one end with a pitman D, pivoted on a crank-wheel E, secured on the main driving shaft F, which when rotated imparts a reciprocating motion by means of the crank-wheel E and the pitman D to the knife-head O. Other suitable means may be employed to impart a reciprocating motion to the knife-head O.

In said knife-head O are arranged the transversely-extending slots G, G, and G of which the slot G is located between the slots G and G, and the three slots are arranged parallel with each other, as shown in Fig. 3.

In the slots G and G extend the cuttingedges of the knives H and H, respectively,

extending on' the under side of the knife-head O, and provided with the eyes H through which passes a shaft I or I,respectively,held in suitable bearings formed on the under side of the knife-head O. The knives H and H are inclined in opposite directions from each other, as is plainly shown in Figs. 2 and 3, the said knives swinging on their shafts I and I as a fulcrum.

From one of the eyes H of the knives H and H extend outward arms J and 'J, respectively, pressed downward by springs K and K, respectively, located between the under side of the knife-head O, and the tops of the arms J and J, respectively, being coiled on pins K secured to the under side of the knife-head C and projecting through suitable apertures in the arms J and J to form guides for the same.

In the knife-head O screw the screws L and L, respectively, adapted to engage with their lower ends the tops of the knives H and H, respectively, the said screws serving to regulate the thickness of the shaving to be cut.

In the middle slot G are arranged a series of rotary cutter-disks N, held on a shaft N, mounted in suitable bearings in the cutterhead 0. The upper edges of the cutter-disks N project above the top of the knife-head O, and are adapted to make longitudinal cuts into the under side of the block of wood, so as to cut the shavings into strips.

On the top of the knife-head O arearranged the transversely-extending feed-rollers O and 0, each provided with a series of lugs or projections 0 adapted to engage the ends of the block of wood P, so as to hold the latter in place, and when the feed-rollers are rotated toward -each other to feed the block of wood P downward onto the top of the knifehead 0. The feed-rollers O and O are secured on shafts O and 0 respectively, carrying at one outer end the worm-wheels Q and Q, respectively, meshing in worms Q and Q respectively, secured on a longitudi-' Y nally-extending shaft Q, mounted to turn in suitable bearings on the top of the main frame B.

On one end of the shaft Q is secured a bevel gear-wheel Q in mesh with a bevel gear-=wheel Q secured on a short transvers'ely-extending shaft R, mounted to turn in suitable bearings on the frame B.

On the inner end of the shaft Ris secured a ratchet-wheel R, (see Figs. 1, 3, and 6,) adapted to be engaged by a spring-pawl S,

pivoted to an arm S, f ulcrumed on the shaft R. The inner end of the arm S is adapted to be engaged by a block S having a beveled edge and secured on one end of the knifehead 0. When the arm S is not engaged by the said block S its outer end butts on a lug or bracket S held vertically adjustable on the frame B. When the cutter-head C moves toward the driving-shaft F, the block S engages and raises the inner end of the arm S, so that the -spring-pawl S, hung on the said arm S, swings downward and turns the ratchet-wheel R, whereby the shafts R and Q are set in motion, and the shaft Q, by its worms Q and Q engaging the worm-wheels Q and-Q, turns the feed-roller shafts O and Oi carrying the feed-rollers O and 0, so that the latter feed the block P downward onto the top of the knife-head O.

In order to readilyinsert the block of wood P between the rollers O and O, the bearings 'l of the feed-roller O are rigidly secured on the top of the main frame B, while the bearings Tof the feed-rollerO are held to slide longitudinally in suitable guideways on the frame B.

- In eaeh of the bearings T of thefeed-roller O is secured a pin U, provided with two collars U, engaged by sets of lugs V, projecting from a shaft V, mounted to turn in suitable bearings on top'of the main frame B. On one outerendof this shaft Vis secured a handle V"., for conveniently turning the said shaft V,

so that the latter, by its lugs V pressing on the collars U of the two pins U, slide the latter to move the bearings T toward or from the bearings 'l, and consequently move the feed-roller O in a similar direction toplaee a new block of wood P between thefeed-rollers, and then to hold the same in place.

Theoperation is as follows: WVhen the knifehead C reciprocatcs and moves in the direction of the arrow a, then the knife H cuts withits edge on the under side of the block of wood P, as the said knife H is pressed upward by the spring K, acting on the armJ of the said knife H. -\Vhen the knife-head 0 moves in this direction, the other knife H is pressed downward, as the cutting-edge of this knife stands in the opposite direction to that in which the head 0 moves, and consequently no out or shaving is made by this knife. As soon as the knife-head G moves in the inverse direct-ionof the arrow a the cutting-edge of the cutting-knife H cuts a shaving from the under side of the block P, while the other knife H is then depressed and does not cut. It will be seen that as the block of wood P is fed downward at each forward stroke of the knife-head O, as previously described, the

knife I l will cut on this forward stroke, and when the out is finished the block P is fed downward, so that on the return-stroke the knife H can make its out on the under side of the block. It will be seen that the block of wood receives on its under side longitudinal cuts or slits from the cutters N, so that either knife 11 or 11, instead of making a shaving the width of the block P, makes the shaving in strips, as the cutters are set apart a distance corresponding to the width of the strip of eXeelsior-to be out. It is understood that the shaving strips pass down-ward through the slots Gand G, respectively. .Any desired number of sets of knifes H and H may be placed on one header on a number of heads reciproeated by the same mechanism, By adjusting the screws Land L the thickness of the cut--that, is the thickness of the excelsior-is regulated.

Instead of reciprocating the head O, the block P and its feed-rollers O and 0 may be moved forward and backward, while the head 0 remains stationary. The-action will be the same in both cases.

Having thusdescribedou r invention, what we claim as new, anddesire to secure by Letters Patent, is-

1. In an excelsioranachinc, the combination, with a reciprocating knife-head having transverse slots and provided on its under side with lugs, of shafts held transversely on the said lugs, and knives inclined in opposite directions adapted to pass with their cuttingedges into the said transverse slots and provided with eyes engaging the saidshafts, substantially as shown and described.

2. In an excelsior-machine, the combination, with a reciprocating knife-head having transverse slots and provided on its under side with lugs, of shafts held transversely on the said lugs, knives inclined inopposite directions adapted to pass with their cuttingedges into the said transverse slots and provided with eyes engaging the said shafts, arms extending outward from the said knives, and springs pressing on the said arms to hold the cutting-edges of the said knives in thesaid slots above the top of the said knife-head, substantiallyas shown and described.

AMBROSE L. MOORE. GEORGE D. MOORE. \Vitnesses:

W. E. Fnnnrrwoon, II. J. lllA'lHESON.

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