US26238A - ox weeks - Google Patents

ox weeks Download PDF

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US26238A
US26238A US26238DA US26238A US 26238 A US26238 A US 26238A US 26238D A US26238D A US 26238DA US 26238 A US26238 A US 26238A
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bolt
bar
knife
attached
screw
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B27WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27LREMOVING BARK OR VESTIGES OF BRANCHES; SPLITTING WOOD; MANUFACTURE OF VENEER, WOODEN STICKS, WOOD SHAVINGS, WOOD FIBRES OR WOOD POWDER
    • B27L5/00Manufacture of veneer ; Preparatory processing therefor
    • B27L5/06Cutting strips from a stationarily- held trunk or piece by a rocking knife carrier, or from rocking trunk or piece by a stationarily-held knife carrier; Veneer- cutting machines

Description

E. T. WEEKS, OF FRANCONIA, NEW' HAMPSHIRE, ASSIGNOR TO S. H. BABGOCK, OF SAME PLACE.
SHOE-PEG Specification of Letters Patent No.
To all whom t may concern:
Be it known that I, E'. T. lVnnks, of Franconia, in the county of Grafton and State of New Ialampshire,A have invented a new and Improved Machine for Splitting Shoe-Pegs; and I do hereby declare that the following is a full, clear, and exact description of the same, reference being had to the annexed drawings, making a part of this specificat-ion, in which- Figure 1, is a plan or top view of my invention. Fig. 2, is a vertical section of the same, taken in the line a?, Fig. l. Fig. 3, is a side view of the same.
Similar letters of reference indicate corresponding parts in the several figures.
This invention consists in the means employed for clamping the bolt and feeding the same to the knife, also in the employment or use of a gage in connection with the knife for properly adjusting the bolt relatively with the knife.
To enable those skilled in the art to fully understand and construct my invention I will proceed to describe it.
A, represents a rectangular frame on the upper part of which a bed or platform B, is placed.
C, is a driving shaft which is attached to the lower part of the frame at one side and has a crank pulley D, at one end and a crank pin E, at the opposite end. The crank pulley D, has a pitman F, attached to it, and the upper end of this pitman is connected to the outer end of a knife Gr, the inner end of which is fitted loosely on a shaft a, on the bed or platform. The outer end of knife Gr, is fitted on a segment guide H, which insures the movement of the knife in a vertical plane.
I, is a gage, which is simply a plate provided at each end with a nut through which screws a', a', pass, said screws being fitted in suitable bearings b, which are attached to springs J, J, secured to the bed or platform. The plate or gage I, has an edgewise position, as shown clearly in Fig. 2, and it is a short distance in front of and parallel with the knife G.
In the bed or platform B, a slot or opening c, is made and in this slot or opening a screw K, is placed, said screw being at right angles with the knife G, and gage I, as shown clearly in Fig. 1. lVithin the slot or opening c, and on the screw K, a bar L,
ien.
MACHINE.
26,238, dated November 22, 1859.
is fitted loosely and on this bar a vertical arbor M, is placed, said arbor having a cam cl, on its lowerY end, which cam works between the tangs (Z, e, of stationary and movable curved bars N, O, the latter' bar O, working on a pivot f, in a plate g, which is attached to the bar L, by a bolt 7L. The bar O, is allowed to work freely on the pivot and to the ends of the tangs d, e, a spiral spring z', is attached, said spring having a tendency to keep the tangs drawn toward each other. To the outer end of the stationary bar N, a serrated jaw 7c, is permanently attached, and to the outer end of the movable bar O, a serrated jaw l, is attached by a pivot m, the jaw l, being allowed to work freely on its pivot.
The bolt 7L, secures to the plate g, a segment rack P, which extends under a spring or elastic bar Q, that is attached to the arbor M. The spring may be given this bar by means of a coil a, connecting the bar Q, to the arbor. The outer end of bar Q, has a handle R, attached.
On the outer end of the screw K, a ratchet S, is placed, and into this ratchet a pawl T, catches, said pawl being attached to the upper ends of a right angled lever U, at the side of the frame A, the lower end of said lever being attached to a pitman V, which is connected to the crank pin E, of shaft C. To the pawl T, a spring 0, is attached, said spring having a tendency to keep the pawl T, engaged with the ratchet S. In the arbor M, a rod A', is fitted, said rod having a spiral spring p, on it which spring has a tendency to keep the lower end of rod A', in the thread of screw K. To the bar L, a cord af, is attached, said cord having a weight B, at its end.
The operation is as follows The bolt shown in red and designated by WV, is secured between the two jaws 7c, Z, by drawing back the bar Q, the cam d', on arbor M, forcing out the tang d, and consequently pressing the jaw l, against the side of the bolt at its lower part and firmly securing the same. The operator adjusts the bolt properly between the two jaws 7c, Z, by means of the gage I, the latter being depressed so that its edge will iit in the outermost groove in the face of the bolt previous to the clamping of the bolt between the jaws. By this means the outermost edge of the bolt will be set parallelly with the knife G. The bar Q,
is allowed to yield or give to a certain extent in order to compensate for the length of the teeth of the rack P, and always insures a snug pressure of the jaw Z, against the side of the bolt. Were a rigid bar Q, employed, the jaw Z, could not be properly pressed against the side of the bolt unless the bar Q, should when drawn back chance to fit directly over the edge of a tooth. When the bolt is properly secured between the jaws c, Z, power is applied to the shaft C, and a reciprocating movement given the knife Gr. Each time the knife G, descends a strip is rived from the bolt W, the upper or face side of the bolt being grooved as usual to form points for the Ypegs when the latter are split from the bolt. Each time the knife descends it passes into a groove, and the bolt is fed forward the distance of the spaces between the grooves each time the knife G, ascends. The feed movement is effected by the action of the pawl T, on the ratchet S, the former being actuated by the crank pin E, pitman V, and lever U, the length of the teeth of the ratchet S, as well as the movement of the pawl T, being such as to turn the screw K, the required distance to shove forward the bar L, and consequently the jaws and bolt the proper distance toward the knife, the screw K, moving the bar L, through the medium of the rod A. When the bolt has been rived or split one way its position is reversed so that it may be rived or split at right angles to the first cuts and thereby form the pegs. The bar L, and bolt may be gigged back at any time by raising the rod A', free from the masa screw K, to allow the weight B to draw back the bar. Different ratchets S, may be used in order to vary the feed according to the size of the pegs to be split, and the movement of the pawl T, may be varied accordingly by attaching the pitman V at different distances from the fulcrum of lever U.
By this invention the bolt may be accurately adjusted with the knife and the former fed intermittingly at equal and proper distances toward the latter in order to insure the proper riving or splitting of the bolt into pegs. The bolt also is firmly secured in proper position between the jaws Za, Z, by means of the yielding bar Q, and the whole device is simple and efficient in its operation.
Having thus described my invention what I claim as new and desire to secure by Letters Patent, is,
1. The feeding device formed of bar L, to which the jaws are connected operated by the screw K, ratchet S, and pawl T, lever U, and pitman V, substantially as and for the purpose set forth.
2. I also claim in connection with the riving or splitting knife the gage I, arranged as and for the purpose specified.
3. I further claim the elastic oryieldingbar Q, when attached to the arbor M, provided with cam (Z, and used in connection with the segment rack I), curved bars N, O, and jaws 7c, Z, for the purpose set forth.
, E. T. VEEKS.
Vitnesses:
NATHL. lV. CHENEY, CHARLES H. CoLLY.
US26238D ox weeks Expired - Lifetime US26238A (en)

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