US787280A - Woodworking-machine. - Google Patents

Description

PATENTED APR. 11, 1905.

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WOODWORKING MACHINE.

APPLICATION FILED D30. 29, 1903.

Patented April 11, 1905.

UNTTET) STATES PATENT @rrrce.

NA'll-IAN F. COFFEY. OF BLACKROCK, ARKANSAS.

WOODWORKlNG-MACHINE.

SPECIFICATION forming part of Letters Patent No. 787,280, dated April 1 1, 1905.

Application filed December 29,1903. Serial No. 186,998.

rock, in the county of Lawrence and State of Arkansas. have invented certain new and useful Improvements in lVoodworking-Machines: and I: do hereby declare the following to be a full. clear. and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

.\l v invention relates to certain improvements in woodwtu'king-machines. It has for its object to provide a machine for shaping wagon-poles.

The invention consists in the details of construction and combination of parts hereinafter described and more particularlypointed out in the claims.

In the accompanying drawings. illustrating the preferred embodiment of my invention, Figure 1 is a side elevation of the machine set up for rounding wagon-poles. Fig. 2 is a plan view thereof, and Fig. 3 is an enlarged detailed view showing more particularly the collars over the cutting-heads.

Referring tnore particularly to the drawings. I provide a central frame 1, preferably made of metal. having mounted in suitable bearings thereon a main or cutter-carrying shaft 3. Said shaft may be driven by a belt connecting with a pulley mounted on a cross-shaft 4 near the base of the frame.

The shaft 2 has preferably detachably se cured to one end thereof a cutter-head 8, carrying knives E). The knives are preferably detachable and interchangeable, so that either straight or curved ones may be used for plan ing and rounding, respectively. Said cutterhead has preferably secured around it a guard l3. bolted or otherwise secured to the frame, which prevents the work from getting prematurely into eontact with the knives. The frame is provided with an upward extension 1 15, on one side of which other mechanism 3 may be attached, if desired.

A long table is adjusted to the side of j the frame 1. Said table is formed in two sections 29 20. one on each sideof the cuttert head and each separately adjustable vertically by means of hand-screws 30. This table supports a wagon-pole 31, along which table it is passed over the roundingknives. In use the section 2%) is adjusted on a lower plane than the section 29 The section 29 has a slight elevation 33 at its outer end which extends a short distance. toward the cutter-head. The small end of the pole is placed on a block 34, which at the beginning of the operation is placed on the platform 33 against a stop 35. Said block has a handle 36, by means of which the pole is propelled forward over the knives. Said pole guided over the knives by a yoke-roller 37 on a rod 38, hinged to the upward extension 15 of the frame 1 and operated by a lever 39, extending within reach of the operator. Said yoke engages the upper surface of the pole, guiding the same between its enlarged ends, thus holding the center of the pole exactly over the center of the rouiuling-knives and securing an equal rounding on all edges of the pole. The pole is placed in position by raising the yoke by pressing down the lever 39, adjusting the large end of the pole thereunder and placing the small end on the block 34. The height of the platform 33 and the portion of the block which supports the small end of the pole should be practically equal to the difference in height of the two sections of the table, so that as the pole is pushed along by means of said block said pole will be rounded straight for a space the proper distance from its larger end equal to the length of said platform and will be tapered throughout the rest of its length. The advantage of adjusting one section of the table lower than the other and placing the small end of the pole upon the block 3-1 is that space is allowed and the pole held in such position that the knives are thereby able to cut out any irregularities in the rough stock, whereas if said section were on a level with the higher one the pole would ride up and down over said table, following i any humps or hollows in the pole as it is passed over the knives.

As shown in Fig. 2, the collars 1-l may have a uard 14 extendin between them up to within a short distance of the knives. This guard or chip-breaker preferably has its extremity shaped to conform to the knife.

It will be understood that I do not limit myself to the details of construction shown and described herein, as they may be changed at will and the spirit of my invention remain intact and be protected. For instance, the platform may be any desired length and height, so that the level rounding may continue for any desired distance and the degree of taper regulated. Also the frame may be provided with bolt-holes 40, whereby a boring-table or any other attachment may be made.

Slots 41 may be provided for attaching additional mechanism which may be desired. The collars over the cutter-heads may be used to advantage in rounding or otherwise shaping doubletrees, bolsters, axles, &c., by using forms or templets such as are used for similar work when performed on machines with vertical heads.

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

1. In a machine of the character described the combination of a frame, a shaft supported by said frame and a cutterhead detachably secured to one end, of collars forming an arch over said cutter-head, and a chipbreaker arranged in the plane with and between the collars and extending up adjacent to the knives.

2. In a machine of the character described, a frame, a shaft carrying a cutter-head, a ta -ble composed of two independently vertically adjustable sections, one arranged on each side of said cutter-head, a block adapted to receive the smaller end of a wagon-pole having a handle whereby it is actuated in propelling said pole over the cutter-head and means for guiding the pole over the cutterhead which automatically adjusts itself to the taper of the tree.

3. In a machine of the character described, a frame, a shaft carrying a cutter-head, a table composed of two independently vertically adjustable sections, one arranged on each side of said cutter-head, a platform arranged near the extremity of one of said sections, a block adapted to receive the smaller end of a wagon-pole, having a handle whereby it is actuated in propelling said tree over the cutter-head and means for guiding the tree over the cutter-head which automatically adjusts itself to the taper of the tree.

4. A machine of the character described, a frame, a shaft carrying a cutter-head, a table composed of two independently vertically adjustable sections, one arranged on each side of said cutter-head, a block adapted to receive the smaller end of a wagon-pole, having a handle whereby it is actuated in propelling said tree over the cutter-head, a yokeroller pivoted to the frame and adapted to guide the pole between its enlarged end portions, and a hand-lever to raise said yoke to place the tree in position.

In testimony whereof I affix my signature in presence of two witnesses.

NATHAN F. COFFEY.

WVitnesses:

H. WV. TOW'NSEND, J. IIAMILTON MYERS.

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