US302911A - Machine - Google Patents

Description

(No Model.) 2 Sheets-Sheet 1.

R. B. JONES.

'PLANING MACHINE.

No. 302,911. Patented Aug. 5, 1884.

WITNESSES I v INVEN TUE %rn 0/2- BY M 5% ATTORNEY N. PETERS. FhnlvLflhogmphL-r. Washmglm, n. c.

2 Sheets-Sheet2.

(No Model.)

B. B. JONES.

PLANING MAOHINE.

Patented Aug. 5, 1884.

INVBNTOR WITNESSES ATTORNEYS Unrrnn Sterne ATENT tries.

RICHARD B. JONES, OF CHICAGO, ILLINOIS, ASSIGNOR OF TWO-THIRDS TO GEORGE F. WETHERELL AND RANSOM RICHARDS, BOTH OF SAME PLACE.

PLANlNG-IVIACHINE.

SPECIFICATION forming part of Letters Patent No. 302,911, dated August 5, 1884.

Application filed February 20, 1884. (No model.)

To all whom, it may concern.-

Be it known that L'RIOHARD 13. Jones, a citizen of the United States, residing at Ohicago, in the county of Cook and State of Illinois, have invented certain new and useful Improvements in WVood-Planing Machines, of which I do declare the following to be a full, clear, and exact description, reference being had to the accompanying drawings,

forming part of this specification.

My present invention has relation to the improvement of wood-planing machines of that class commonly known as edgers, wherein the boards, after being planed upon one or both sides, are passed between revolving cutterheads which plane their edges. In this class of machines it is customary to mount the edgeplaning cutter-heads upon vertical spindles the housings of which are laterally adjust 2o able to accommodate the cutters to boards of different widths. Each cutter-head is furnished with a chip-breaker, that prevents the splintering of the board by the cutterknives, and both the cutter-heads and the chip-breakers project above the bed of the machine a sufficient distance to planethe thickest boards. In planing-machines of this class, as at present usually constructed, the vertical cutter-heads project above the machine-bed,

0 as do also the chip-breakers, which are made each of a single piece of metal bolted to the adjustable housing. It is obvious, therefore, that in such construction, when it is desired to work the machine upon very wide boards the edges of which are not to be planed, it is necessary to move the adjustable housing to the extreme sides of the machine, and to re move the cutter-heads and the chip-breakers. This shifting and removal of parts is object-ionable for the reason that it not only causes delay, but also necessitates the readjustment of the housings and the chip-breakers when the edges of narrow boards are to be planed. A further difliculty found with the edge-plan- 4 5 ing devices as commonly constructed is that the spring by which the chip-breakeris pressed forward bears upon it near its free end, where it is subjected to all the movement of the chipbreaker, and is liable to become speedily weakened and unfit for use.

The object of my invention is to overcome the above-mentioned difficulties, and this I accomplish by providing a planing-machine wherein the only change necessary to enable the'machine to work upon very broad stuff, the edges of which need not be planed, will be the removal of the cutter-heads and a por tion only of the chip-breakers, and by providing for each chip-breaker a stiff spring which will bear thereon at a point very near 6 its fulcrum or fixed end, and which, being hence subjected to but slight movement, will not become weakened.

In the accompanying drawings, Figure 1 is a view in side elevation of a planing-machine, 6 a portion of which is broken away, showing parts in vertical section. Figs. 2 and 3 are respectively enlarged detail plan and side views of one of the edge-planing cutter-heads and adjacent parts. Figs. 4 and 5 are enlarged detail plan and side yiews,respectively, similar to Figs. 2 and 3, but having the cutterhead and foot of the chip-breaker removed. Fig. 6 is a detail perspective view of the improved chip-breaker.

To the sides A of the machine-frame, in the usual position for sustaining the edge-planing cutter-heads, is connected the red A, upon which are carried thehousings B, that are adapted to receive the vertical spindles O of the cutter-heads D, and are provided with suitable rods, a, extending to the outside of the machineframe, whereby the lateral adjustment of the cutter-heads can be effected.

Upon the tops of the housings B are bolted the rest-blocks E, formed of the base-portions 0, cut away to admit the spindles O, and of the body portions 6, upon the tops of which the lumber may rest as it passes the cutter-heads.

A portion of the body-c of each rest-block is 0 omitted, as shown. and to the base 0 at such point is attached by a suitable pivot-bolt, f, the chi p-breaker F. The free end of this chip-breaker is provided with the upwardlyextending angular part f, the bent end of 5 which is on a level with the tops of the restblock, and is provided with the small sockets f 2 and the perforation f.

To the end of the part f is connected by a bolt passing through the perforation f and by lugs fitting into the sockets f the removable foot f the curved forward edge of which the cutter-heads and the detachable feet of point of the spring near the free end of the chip-breaker, and there will therefore be much will bear upon. the edge of the board passing through the machine. A strong fiat spring, G, is bolted to the outer edge of the base e of each rest-block, and has anupwardly-projecting lip, g, which bears upon the body of the chip-breaker at a point very near its fulcrum. The upper ends of the spindles 0 do not extend above the rest-blocks, but terminate on a line therewith, or, as shown in the drawings, a slight distance below, and to these spindles will be keyed the cutter-heads in usual manner.

From the foregoing description it will be seen that when the machine has been planing the sides and edges of narrow stuff, and it is desired to run through very broad stuff and temporarily dispense with the edge-planing devices, it will only be necessary ,to remove the chip-breakers. This operation can' be quickly performed, and while leaving no obstacle to the passage of broad boards through the machine will in no wise disturb the position of the housings, thus requiring no readjustment of parts if the cutter-heads are to be used afterward upon narrow boards of the sameuniform width.

It is obvious that by locating the spring of the chip-breaker, as shown, so that it shall bear thereon near its fulcrum,tl1e chip-breaker in moving will impart much less motion to the spring than it would were the bearingless tendency to weaken the spring.

Having thus described my invention, what I claim as new, anddesire to secure by Letters Patent, is

of travel of the work, of a foot projecting within the line of travel of the work and removably connected to the body of the chipbreaker, substantially as described.

2. In a planing-machine, a chip-breaker comprising a main body and a foot removably connected to the upper side of said main body, substantially as described.

3. In a planing-machine, the combination, with the ed ge-planin g cutter-heads, of spindles for said cutter-heads terminating below the line of travel of the work, and-chip-breakers having their bodies below the line of travel of the work, and having detachable feet, substantially as described.

4. In a planing-machine, the combination, with the vertical cutter-head, and a chipbreaker having a free and a pivoted end, of a spring arranged to bear upon the chip-breaker at a point at one side of but very near its pivoted end, substantially as described.

5. In a planing-machine, the combination, with the vertical spindles, of the rest-blocks extending in line with or above the ends of said spindles, and the chip-breakers, the bodies of which are below the tops of said blocks and are provided with removable feet, substantially asdescribed. I

In testimony that I claim the foregoing I have hereunto set my hand this 14th day of February, 1884.

RICHARD B. JONES.- WVitn esses:

JAMES H. PEIRoE, GEO. I. FISHER, Jr.

Images