US5731A

US5731A - Elisha k

Info

Publication number: US5731A
Authority: US
Publication date: 1848-08-22
Anticipated expiration: 1865-08-22

Description

orm n e ELISHA K. ROOT, OF COLLINSV LLLE, .CONECIICUT; .ASSIGN.OR JJO COLLINS G0.

MWHINEB FOR DRES NQ Specification of Letters Patent No. 5,731, dted August 22, 1848.

Upon a strong stationary bad of cast iron,

standing horizontally, I place a vibrating, or sliding, bed, which is made to move back and forth between suitable guide pieces bearing against its edges. Motion is given.

to this sliding bed by means of a Crank connected with it by a shackle bar. Upon this sliding bed the ax to be dressed is to be laid, and it is to be held in place while operated upon by check pins bearing against its edges, and a set screw bearing against its edges or sides or by any analogous means. On each side of the sliding bed there rises from the stationary bed, one, or any other preferred number of strong pins, or bolts, which are to sustain the pressure of the back of the knife used for dressing or shaving the axes; this knife is made somewhat in the form of a drawing knife, and is governed by hand. When the machine is in operation a lever is made to bear on the upper side of the knife with a degree of force which may be regulated by a treadle or by hand.

In the accompanying drawing A, A, is the stationary bed, at the center of which there are two shafts B, B which may be made to revolve by means of a band on the whirls C, driven by any adequate motive power.

D, is a crank and E, a shackle bar proceeding from each shaft B to the sliding bed F, that represent two modifications of the same machine and each of which moves back and forth between the cheeks F F. Upon this sliding bed the ax G, is laid, and it may be kept in place by means of pins or by a block a, and a set screw b, bearing against it. Toward the thin end, or edge, of the ax, two short pins a a may rise from the sliding bed to support it inthat part, and prevent its rocking upon its convex face, (the place of them is shown on the right hand machine) or if preferred, a hollow or excavation may be made in the slid- 1ng bed, to admit the convex face of the ax.

H, H, is the knife drawn in red lines in Figure 1, and shown separately, and on a larger scale, in Fig. 2.

The blue line 0 0 is the cutting part. This may be a bar, or cutter, of steel, independent of the machine, so as to admit ofit being redily removed and sharpened.

One, or more 'stout standards or pins f, f, f, rise vertically from the stationary frame, or bed, for the purpose of supporting the back of the knife which is held against them, and which may be passed between them, either straight, or obliquely, and managed by its handle e, or in any other convenient way, as, for example, by allowing one end of the knife to be held by a hook, &c., and having a handle at the other.

To enable the operator to force the knife against the face of the ax, and to cut a proper shaving therefrom, a lever I, is made to bear upon it with any required degree of force, which force may be regulated by the hand or foot in the following manner. J, J, is a rectangular frame of iron, into the slot J, of which the lever I, is fastened; this frame is attached to the standards f, f. The end of the lever I, maybe attached to a frame cohstituting a treadle upon which the foot of the operator may be made to bear as may be desired, and not represented or it can be pressed down by hand, or the screws 7L, 7L, may be substituted for the lever in some cases. By this arrangement as the sliding frame is drawn back the knife may be made to shave, or dress the face of the aX in a very-perfect manner, the hand of the operator adapting it to the whole surface successively, and leaving it in a state in which it will rarely require any other dressing excepting that which is given to it by the polisher after it has been hardened and tempered; if necessary, however, the cutting edge may be touched upon the grindstone.

Having thus fully described the nature of mymachine for dressing, or shaving, the faces of axes, in lieu of the ordinary process of grinding, what I claim therein as new, and desire tose'cure by Letters Patent, is The manner in which I have combined and arranged the respective parts thereof as herein described, consisting of a knife, or

cutter, held and gnided by the hand of the operator and sustaned against suitable pins,

forward, under the knife, and the whole structure and operation being substantiafly or bearngs, and borne down upon the face the same with that hereinmade known.

of the ax by the action of the screw lever, or pressing bar or other analogous device, in combination with the s1iding bed on which the ELX is made to traverse backward and ELISHA K. ROOT.

Witnesses:

SAMUEL N. WOODBRIDGE, ADDISON B. FLINT.