US63707A - Improvement in outtee-heads foe wood-moulding machines - Google Patents

Description

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DAVID OUMMING, JR., OF NEW YORKQN. Y., ASSIGNOR TO HIMSELF AND STEPHEN W. SMITH, OF THE SAME- PLAGE.

Leners Paten: No. 63,707, dans April 9,1867.

'IMPROVEMENT IN GUTTERHEADS FOB. WOOD-MOULDING MACHINES.

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TO ALL WHOM IT MAY CONCERNr l Be it known that LADA'VrDI GUMMING, Jr., of New York, in the county and State of New York, have invented a new and usefuliMachine for Moulding and Shaping Wood; and I do hereby declare that the follow! ing is a full, clear, and exact description-oi` the construction and operation of the same, reference being-had to the annexed drawings, making a part of this specification, in Which- Figure 1 is a perspective view.

Figure 2, a horizontal section; and

Figur/es 3 and 4, vertical sections of a portion of the table, showing the cutter-head in diiierent positions.

The same letters refer to corresponding parts in the different figures, in whichl 4A is-the framev of thej machine; B the tahleC an upright spindle, having bearings in the frame, and suspended by the swivel D, lever E, and spring k, and rotated in the direction of they arrow by a belt on the pulley G. The spindle isdrawn down by the rod H attached to the lever. To the lower end oi' the'spindle is attached-,the cutter-head K, with the cutters L L. M N are guides, attached to the cutter-head, one above and the other below the cutters. The shank of the cutter-head is continued below the lower guide, and enters the bearing O in the table. The bearing O is countersunk to a depth suiiicient to allow the lower guide to be depressed below the surface of the table. Pis the pattern or shape of the work, to which is attached theI piece' of wood, W, to be shaped.

In operating, the rod is drawn down and hooked to the pin K, which brings the lower. guide a suitable height above theA table, as seen in iig. 3. The pattern with the wood attached to it is laid on the table and pressed against thelowerguide, when all the-superfluous Wood is cut oii that can be cut one way ot' the grain. The rod is then drawn down and hooked to the pin S, which depresses the lower guide into the counter-sink below the surface of the table, as seen in iig. 4. The pattern, with thewood still attached to it, is turned upside down, with the wood resting on the table, and the pattern pressed against-the upper guide, when the remainder of the superfluous wood can be out oi` with the cutter still rotating in thc same direction.

I am aware thatwood has been planed and carved to a pattern, a rotary cutter beingv employed with a guide running against the pattern, so as to determine Vthe shape or form of the article planefl. These guides have in some instances been both above and below the cutters, so that the pattern might b e on the underpor onthe upper surface et' the wood to be planed. These devices, however, were not adapted to planing with the grain of the wood by the 4simple inversionoi` the pattern and wood, because if the cutter had been fitted to run at lthe level of the bed, (the guide taking:r the pattern above the wood,) when saidpattern and wood were turned over the pattern would come into contact with thecutter. By my improvement this last-named diieulty is'obviated by lowering the bed or raising the cutter with facility, so that the planing can be effected continu-v ously by raising or lowering the cutter relatively to the bed, when the pattern and wood are turned over so as to use the guide above or below the cutters interchangeably, according to the position of the pattern.` Ido not, therefore, claim a rotary cutter held between two heads, which alsoV form guides; neither do I claim the guide and pattern acting below the wood to be planed, nor the guide and pattern acting above the wood to be planed; but what I claim, and desire to secure by Letters Patent, is i p A cutter-head formed with a guideboth above and below the cutter, in combination with mechanism for raising or lowering the cutter relatively with the bed, so that the pattern and wood to be planed can be laid either side upwards on the'bed, (according to the direction of the grain of the wood in planing) and the cutter and guides be brought to their proper places relatively to the` wood and th'e pattern, as set forth.

' DAVID CUMMING, Jn.

Witnesses Y Gao. Lnnrno'ron, CIIAs'. MoN-Tacna.

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