US607602A - The norris peters co - Google Patents

Description

Patented July l9, I898.

G. E., M. LEWIS. MACHINE FOR CUTTING SHOE SHANK STIFFEN ERS. (Apphcatlon filed Oct 30, 1897) (No Model.)

No. 607,602. Patented July l9, I898. e. E. mruzwls.

MACHINE FOR CUTTING SHOE SHANK STIFFENERS (Application filed Oct. 30, 1897.)

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c'nonen EZRA MORTON LEWIS, OF TRURO, CANADA.

MACHINE FOR CUTTING SHOEI-SHANK 'S-TIFFENERS.

SPECIFICATION forming part of Letters Patent No. 607,602, dated July 19, 1898. Application filed October 30, l897.' Serial No. 657,137. (No model.)

To ctZZ whom it may concern.-

Be it known that I, GEORGE EZRA MoRroN LEWIS, a British subject, residing at Truro, in the county of Oolchester, in the Province of Nova Scotia and Dominion of Canada, have invented a new and useful Machine for Outting Shoe-Shank Stiffeners from Veneers, of which the following is a specification.

My invention relates to shoe-shank stifieners which are made from a coil or ribbon of veneer cut from a bolt of wood; and the ob ject of my invention is the production of a machine which will rapidly and neatly out these shank-stiffeners from the prepared ribbon or coil. I attain these objects by means of the mechanism illustrated in the accompanying drawings, in which Figure 1 is a vertical section of the machine on line a b of Fig. 2, looking toward the left. Fig. 2 is a side elevation of the machine with the cam-wheel and its attachments removed. Fig. 3 is a plan of the machine as it appears after the removal .of the block-holder, the knives and their connections. Fig. 4 is an elevation of the end of the machine on which the driving-pulleys are attached, having the block-holder removed and showing the feedgear. Fig. 5 is a section of the machine on line a (Z of Fig. 1, looking to the right, with the block-holder, the knife-beams, and their attachments removed, showing the mechanism for pressing the veneer against the block and for throwing off the several pieces as they are cut and released. Fig. 6 is a view of the ejector as it appears immediately after it has thrown off the severed pieces. Fig. 7 is an enlarged elevation of the cam-wheel, and Fig. 8 isaplan of the same. j Fig. 9 is an enlarged elevation of the ejector-stand. Fig. 10 isaplan of the same, and Fig. ll is an end view of the same.

Similar letters refer to similar parts throughout the several views.

The four legs A A A A and the connectingbeams-B and O constitute the frame of the machine, which is of cast-iron.

a is the block-holder which is of cast-iron and is bolted onto the top of the machine.

I) is a chopping-block of wood or soft metal against which the veneers e e are pressed by the veneer-holder 'Z and against which the cutting edges of the four knives 08' no 03 or touch when the shanks are severed from the veneers. The knives a3 a2 a," 00 are bolted onto the knife-plates b b, which are driven with a reciprocating motion between the guides o o 0 0 of the knife-beams d d, which beams are held in place by the bolts x 00, which may be adjusted in any suitable manner for different sizes of shanks and to cut shanks of different bevels.

f are fast and loose drivingpulleys at- 7' V tached to the driving-shaft g, which carries one of the gear-wheels m and the cam h.

j j are the crank-shafts, which are connected with the driving-shaft g by the gearwheels m m m m m. 7c is a spool from which the veneers are unwound as they are used by the feed-rolls Z Z Z Z.

R is an adjustable stand secured to the beam 0, carrying the feed-rolls Z Z Z Z, the two top ones of which are vertically adjustable by means of the screws P P.

n is the shaft or journal of the top feedrolls Z Z, which projects beyond the frame of the machine and carries the ratchet-wheel s and the link 2?.

w is the ratchet-pawl. I

u is a slotted crank attached to the outer end of one of the crank-shafts o is a connecting-rod connecting the crank it with the arm y and through which, by means of the link 15, the pawl w, and the ratchet-wheel s, an intermittent rotary motion is communicated to the feed-rolls Z Z Z Z.

z z are projections on the stand R, carrying the rod a, which supports the veneerguides Z) Z) I).

c c are stands bolted to the frame A and to which the veneer-holder i is pivoted.

d d are the connecting-rods which connect the knife-plates b b with the crank pins on the ends of the shafts j j.

e is a forked arm pivoted to the frame of the machine at f and carrying the roller 0, which is held against the face of the cam h by the action of the spring 9. The arm 6 also has attached to it one end of the connecting-rods h h, the other end being connected to the veneer-holder "Z. The roller 0 being held against and following the inequalities of the cam Z'L an intermittent, reciprocal, and vertical motion is imparted to the veneer-holder 11.

Z is the ejector-stand, having an arm 70,

projecting upward and carrying the ejector n n, which is composed of two light curved pieces of metal resting on and crossing each other where they are pivoted to the arm 70. The upper extremities of the ejector pass through the veneer-holder t in the slot 0, while to their lower extremities are attached light antifriction rollers, which are held against the vertical faces of the cam h by means of the springs m m or other resilient device. Thus by being forced to follow the inequalities on the horizontal faces of the cam an intermittent reciprocal horizontal motion is imparted to both extremities of the ejector. In its normal position the free extremities of n n will be together and between the two strips that are to be out. After the strips are severed and the holder withdrawn the rollers .enier recesses in the cam h and the spring m forces the free ends of n rapidly apart, thus forcing the cut stiffeners in opposite directions from the machine.

The operation of the machine is as follows: The veneer-holder 'Z, operated by the cam h and the spring g, presses the veneers e e firmly against the chopping-block b, when by the upward movement of the knives so at m w the shank-stiffeners are cut. The veneerholder then moves downward, releasing the severed pieces. The knives move on the downward stroke and the upper extremities of the ejector suddenly open, operated by the cam h and the springs n n or other resilient device, and expel the severed parts. The feed rolls Z Z Z Z then operate, carrying the veneers e e from the spool 70 between the guides 19 b b forward a certain distance under the chopping-block Z), against which they are again pressed by the upward motion of the veneerholder 2', and the operation, which is automatic throughout, is repeated.

Having illustrated and described my invention, what I claim as new, and desire to secure by Letters Patent, is

1. In a machine for cutting shoe-shank stiffeners, the combination of the holder, the reciprocating knives for cutting on a bevel, ejecting mechanism, and automatic means for successively operating said holder, knives, and ejector, substantially as set forth.

2. In a machine for cutting shoe-shank stiffeners, the combination with the cutting-block and holder, of the reciprocating knives, the driving shaft, the cranks and connectingrods for operating the knives and the intermediate gear connecting said driving-shaft and cranks, substantially as set forth.

3. In a'machine for cutting shoe-shank stiffeners,the combination with the cutting-block, the knives and the cam h; of the reciprocating holder i intermediate of the knives, the lever e pivoted to the frame, the rods hconnecting the holder 2' with the lever e, the roller 0 on the extremity of e, and the spring 9 for pressing the roller 0 against the cam h, substantially as set forth.

4:. In a machine for cutting shoe-shank stiffeners,the combination with the cutting-block, the holder, and the knives, of the pivoted fingers disposed between the strips to be cut, and automatic means for forcing the fingers rapidly apart to expel the strips when severed, substantially as set forth.

5. The combination in a machine for cutting shoe-shank stiffeners, with the cutting block, holder, knives, and cam; of the pivoted fingers n n, the spring m, the doublegrooved cam h and the rollers on extremities of the fingers n n bearing on said cam h, substantially as set forth.

GEORGE EZRA MORTON LEWIS.

Witnesses:

RUFUS A. TREMAIN, A. M. DAVISON.

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