US16659A - Machine foe splitting- shoe-peg s - Google Patents

Description

UNITED STATES PATENT OFFICE.

NATHANIEL H. SHAV, OF TABDVORTH, NEW' HAMPSHIRE.

MACHINE FOR SPLITTING SHOE-PEGS.

Specification of Letters Patent No. 16,659, dated February 1'?, 1857.

To all lwhom it may concern:

Be it known that I, NATHANIEL H. SHAW, of Tamworth, in the county of Carroll and State of New Hampshire, have invented a new and Improved Machine for Splitting Shoe-Pegs from the Blocks; and I do hereby declare that the following is a full and exact description thereof, reference being had to the accompanying drawings, making part of this specification, Figure l being a plan of the machine; Fig. 2, a side elevation thereof; Fig. 3, a vertical section in the plane indicated by the line fo Figs. l and 2; Fig. 4, a corresponding section, representing certain parts in different positions.

Like letters designate corresponding parts in all the figures.

A suitable table A, is prepared for the reception of the machinery and the work. All the parts are driven by a driving shaft B, to which the power may be applied in any convenient manner. The parts to which the movements are communicated, directly or indirectly, from this shaft, are the splitting knife D, the holding bar E, and the feeding blade Gr.

The knife D, is driven by means of a crank P, on the driving shaft, and a pitman M, connecting said crank with one end of the knife, the other end thereof, being pivoted at a, to the table. A guide serves to keep the knife firmly and accurately in the proper plane.

The holding bar E, is provided at the ends with sleeves R, R, which slide upon vertical rods Q, Q; or any equivalent arrangement for allowing a vertical reciprocating movement of the bar, may be employed. The rods, or posts, Q, Q, are made adjustable in position, either by having them mounted on arms O', O, which may be moved around to any desired position, on pivots f, f, as represented in the drawings; or by any other convenient device, such as slots in the table A, and tightening nuts to secure said posts in any position in the slots. The object in making the position of the holding bar E, adjustable, is to enable the machine to be readily prepared for splitting pegs of different thicknesses froin the blocks. The peg blocks S, are previously grooved in directions at right angles, so as to form the points of the pegs as seen at s, s, in the drawings. The distance betweenthe lower edge of the knife D, and of the holding bar E, should be equal to the distance between the adjacent grooves s, 8whatever the thickness of the pegs, so that as the bar presses down in one groove, the knife may be accurately directed to the center of the adjacent groove and thus separate the strips so as to leave no burs or slivers at the points of the pegs. The bar E, is lifted from the blocks of peg-wood, by the knife D, striking a pin c projecting from the side of said bar. It is pressed down upon the block by springs d, d, on the posts Q, Q, the force of the pressure being regulated by nuts e, e, screwed upon the ends of the posts. Thus, after the block is moved along by the feeding blade, as the knife descends and leaves the pins c the holding bar is allowed to enter a groove s and thus secure the proper position of the block before the knife reaches it; and again the knife ascends and entirely clears from the block before the holding bar is started from its hold, so that the position of t-he block can not be disarranged so as to make bad work, if the machine is properly adjusted in the beginning.

The feeding blade, or pawl, G, is secured to the ends of two vibratory arms N, N, which are pivoted at 1', r, to cheeks, or standards, L, L, attached to a rock-shaft H. The blade is adjusted to suit different lengths of pegs, by means of adjusting screws n, a, in the tops of the standards L, L, servingas stops to the movement of the projecting extremities p, 79, of the arms N, N. Slight springs, m, m, press down upon the arms N, N, and thus cause the feeding blade to enter the grooves of the blocks with certainty. The proper vibratory motion is given to the rock-shaft H, by the action of a cam C, upon an arm I, which projects downward from said rock-shaft. This cam is situated on the driving-shaft B, and has a throw sufficient to give the utmost movement to t-he feeding-blade required for the largest pegs. The movement of the feeding blade is varied to suit all sizes of pegs, by an adjustable stop g, against which the vibratory arm I, is forced at every revolution of the cam, whereby a greater or less portion of said cam is made to act upon the arm. The counter motion of the arm I, is given by a spring Z, or its equivalent. The feeding blade is required to be so adjusted that when it is driven forward to the farth est extent of its motion, the distance of its lower edge shall be just the distance between two adjacent grooves, behind that of the holding bar E; and when drawn back to the extent of its movement, the distance between it and said holding bar shall be equal to the width of two rows of pegs. These distances are adjusted by setting a spring 7L, attached to the arm I, against which the cam acts, to the proper position by an adjusting screw z, as represented in the drawings.

Among the advantages of the above described machine, besides its evident simplicity and cheapness, are, 1st, it works the blocks up to the last row; 2nd, it is not liable to get disarranged, so as to do bad work; 3rd, its capability of adjustment, to split out pegs of all sizes, with the utmost facility and without the replacement of a single part.

I do not claim the combination of a splitting knife with a fluted feeding roller, or its equivalent, being aware that such has before been claimed; but

l/Vhat I claim as my invention and desire to secure by Letters Patent, is

l. The feeding blade G, when arranged substantially as described; whereby its movement is produced and adjusted to suit all the requirements of the machine, under all circumstances, in the most simple and perfect manner.

Q. I also claim the arrangement of the holding bar E, in such a manner as to enable its motions to be produced without interference with the alternate action of the splitting knife and feeding blade, and to be adjusted for the different sizes of pegs so as not to disarrange the relative positions and movements of said holding bar, splitting knife, and feeding blade, substantially as specified.

NATHANIEL H. SHAW.

Vitnesses ENOCH REMICK, RUSSELL H. CARTER.

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