US57191A - Improvement in planing-mach ines - Google Patents

Description

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JAMES J. RUSS, OF WORCESTER, MASSACHUSETTS.

IMPROVEMENT IN PLANING-MACHINES.

Specification forming part of Letters Patent No. 57,191 dated August 14, 1866.

To all whom it may concern.-

Be it known that I, J AMES J. RUSS, of Worcester, in the county of Worcester and State of Massachusetts, have invented a new and Improved Pressure-Foot for Planing-Machines, 85e.; and I do hereby declare that the following is a full, clear, and exact description thereof, which will enable others skilled in the art to make and use the same, reference being had to the accompanying drawings, forming part of this specification.

The present invention consists in so hanging a pressure shoe or foot for wood planing and molding' machines to and in a xed support or rest therefor that it can be adjusted in position to accommodate itself to the cutters of the machine, whether large or small, and also adjusted'and set to conform to the bevel or inclination, whether more or less, of the surface of the stuft' or wooden strip which is being passed or run through the molding or planing machine, whereby the wood or stuff, while being acted upon by the cutters, can be firmly held, and thus prevented from springing,7 so called.

In accompanying plate of drawings my improved pressure shoe or foot is illustrated, Figure l being a side elevation of the same; Fig. 2, a transverse vertical section through the pressure-foot taken in the plane of the line m x, but with the head in and to which the pressure-foot is hung in elevation; and Fig. 3, an elevation ofthe front end of the pressurefoot.

Similar letters of reference indicate like parts.

A in the drawings represents the head or block in which the pressure-footB is hung, as will be presently explained, this block, by its arm O, being set over and secured to any cross bar or rail, D, ofthe frame-work of a molding or planing machine in proper or suitable position therefor, a set or thumb screw, E, being used as a means for fastening.

The pressure-foot B is made of suitable width and length, and along the center line of its upper side, in the direction of its length, is a raised flange, F, terminating at and along its upper edge in a circular-shaped bead or strip, G, in transverse section, which bead,

along its entire or for a portion only of its length, has a series of ribs, a, with aspace, b,

between each rib formed around it, extending from one side to the other of the flange F, as plainly shown in the drawings.

By the bead-fiange F, hereinbefore referred to, ofthe upper side of the pressure-foot the pressure-foot is hung in the groove H of the under side of the head-block A, which groove extends in the direction of its length, and is of a corresponding shape, in transverse section, to the said bead-flange F, consequentlyv holding the pressure-foot so thatit cannot fall out of or become disengaged from the headblock, while, to enable the pressure-foot to be swung either to the right or left in the said block, the groove H,Vat the edges I I, is suitably cut away therefor. (See Figs. 2 and Sin the drawings.)

J J are two forked arms, one upon each side of thehead-block A, and at points directly opposite to each other, in and between the forks of each of which arms a block, K, is pivoted or hung so as to swing, through each of which blocks a thumb or set screw, L, is passed, that,

` at their lower ends, by properly screwing them through the said swinging-blocks, come to a bea-ring against the upper side of the pressure foot or shoe B.

From the above it is plainly obvious that by hanging the pressure foot or shoe in and to the head-block A, secured to the cross bar or rail of the machine, so as to swing therein, in combination with the thumb or set screws L, arranged in such head so that they can be brought to bear upon the pressure'foot upon each side of the headblock, the said pressurefoot can be easily adjusted and set transversely or across its width to any bevel or ineline which there may be in the surface of the wooden strip or stuff that is being planed or molded, so that if the head-block to which the pressure-foot is hung is secured in the proper part of the machine therefor, the stuif, as it is acted upon by the cutters of the machine, can thus be held firmly and rigidly down without springing,77 so called, the advantages of which are obvious.

To adjust the pressure-foot within the headblock A, in the direction of its length, so that the position of the front end of the pressurefoot can be properly set with regard to the plane of revolution ofthe cutters used, whether they be large or small, the pressure-foot is simply moved forward or backward through the head-block, according as the case may be or it may require, until in the desired position, when, engaging the stop M, inserted in the upper side of the head-block, with the ribs of the head-ange F of the pressure -foot, by simpl y depressingor pushing it down and there seeming it by a setscrew, N, the pressure-foot is thus firmly secured and held in such position, and cannot move laterally Within the headblock,- the ribs of the bead-ange F and the stop M enabling the pressure-foot to be adiljusted at any points of its length, as is obvious.

From the above description it isplainly obvious that both adjustments of which the pressure-foot is susceptible are independent of each other, and that Whatever its adjustment may be in one particular or direction-as, for instance, transversely or longitudinallythe other adjustment is still free to be made Without disturbing such prior. adj ustment-an advantage of considerable importance.

In order that the pressure-foot B may be placed or adjusted with great closeness on the Wooden strip or stuff upon which the cutters of the planing or molding machine are acting to the point of the action of the cutters upon the stuff, I deem it best to bevel the frontend of the pressure foot or shoe for a portion of its length, as plainly shown in Fig. l of the drawings, whereby the desired result can be accomplished, as is obvious Without any further explanation.

It is apparent that many modications may be made in the detail, construction, and arrangement of the various parts composing my improved pressure foot or shoe, and yet the shoe be susceptible of the adjustment hereinabove explained, and therefore I do not intend to limit myself to only the precise arrangement and construction described, the present invention consisting, as before stated, in so hanging the pressure foot or shoe as to be susceptible of either one or both of the adjustments hereinbefore specified.

What I claim as new, and desire to secure by Letters Patent, is-

A pressure-foot for planing-machines, arranged and constructed to operate substantially as described. f

The above specification of my invention signed by me this 11th day. of May, 1866.

JAMES J. RUSS.

Witnesses:

M. M. LIVINGSTON, ALBERT W. BROWN.

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